diff --git a/docs/config-app.md b/docs/config-app.md
index a661f5a74a2..3024b0f4563 100644
--- a/docs/config-app.md
+++ b/docs/config-app.md
@@ -154,7 +154,6 @@ There are several typical keys:
 - `adapters.<BIDDER_NAME>.usersync.redirect-url` - the redirect part of url for synchronizing UIDs cookie.
 - `adapters.<BIDDER_NAME>.usersync.cookie-family-name` - the family name by which user ids within adapter's realm are stored in uidsCookie.
 - `adapters.<BIDDER_NAME>.usersync.type` - usersync type (i.e. redirect, iframe).
-- `adapters.<BIDDER_NAME>.usersync.support-cors` - flag signals if CORS supported by usersync.
 - `adapters.<BIDDER_NAME>.debug.allow` - enables debug output in the auction response for the given bidder. Default `true`.
 - `adapters.<BIDDER_NAME>.tmax-deduction-ms` - adjusts the tmax sent to the bidder by deducting the provided value (ms). Default `0 ms` - no deduction.
 
diff --git a/src/main/java/org/prebid/server/bidder/UsersyncInfoBuilder.java b/src/main/java/org/prebid/server/bidder/UsersyncInfoBuilder.java
index b1ddd6c9dc9..9a0014a3cd1 100644
--- a/src/main/java/org/prebid/server/bidder/UsersyncInfoBuilder.java
+++ b/src/main/java/org/prebid/server/bidder/UsersyncInfoBuilder.java
@@ -14,7 +14,6 @@ public class UsersyncInfoBuilder {
     private String usersyncUrl;
     private String redirectUrl;
     private UsersyncMethodType type;
-    private Boolean supportCORS;
 
     public static UsersyncInfoBuilder from(UsersyncMethod usersyncMethod) {
         final UsersyncInfoBuilder usersyncInfoBuilder = new UsersyncInfoBuilder();
@@ -23,7 +22,6 @@ public static UsersyncInfoBuilder from(UsersyncMethod usersyncMethod) {
                 StringUtils.stripToEmpty(usersyncMethod.getRedirectUrl()),
                 UsersyncUtil.resolveFormat(usersyncMethod));
         usersyncInfoBuilder.type = usersyncMethod.getType();
-        usersyncInfoBuilder.supportCORS = usersyncMethod.isSupportCORS();
 
         return usersyncInfoBuilder;
     }
@@ -88,7 +86,7 @@ public UsersyncInfo build() {
         final String resolvedUsersyncUrl = usersyncUrl.replace(
                 UsersyncInfo.REDIRECT_URL_PLACEHOLDER, resolvedRedirectUrl);
 
-        return UsersyncInfo.of(resolvedUsersyncUrl, type, supportCORS);
+        return UsersyncInfo.of(resolvedUsersyncUrl, type);
     }
 
     private static String resolveQueryParams(String redirectUrl) {
diff --git a/src/main/java/org/prebid/server/bidder/UsersyncMethod.java b/src/main/java/org/prebid/server/bidder/UsersyncMethod.java
index 843c2893151..59f39b080d5 100644
--- a/src/main/java/org/prebid/server/bidder/UsersyncMethod.java
+++ b/src/main/java/org/prebid/server/bidder/UsersyncMethod.java
@@ -13,7 +13,5 @@ public class UsersyncMethod {
 
     String redirectUrl;
 
-    boolean supportCORS;
-
     UsersyncFormat formatOverride;
 }
diff --git a/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java b/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java
index d8f85e9c8e2..833e6f1be1c 100644
--- a/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java
+++ b/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java
@@ -1,6 +1,5 @@
 package org.prebid.server.proto.response;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Value;
 import org.prebid.server.bidder.UsersyncMethodType;
 
@@ -22,7 +21,4 @@ public class UsersyncInfo {
     String url;
 
     UsersyncMethodType type;
-
-    @JsonProperty("supportCORS")
-    Boolean supportCORS;
 }
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java b/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java
index fc9b685b339..2c05299c178 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java
@@ -6,7 +6,6 @@
 import org.springframework.validation.annotation.Validated;
 
 import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotNull;
 
 @Data
 @Validated
@@ -18,8 +17,5 @@ public class UsersyncMethodConfigurationProperties {
 
     String uidMacro;
 
-    @NotNull
-    Boolean supportCors;
-
     UsersyncFormat formatOverride;
 }
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreator.java b/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreator.java
index b5606c719b9..195212ddc3a 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreator.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreator.java
@@ -56,7 +56,6 @@ private static UsersyncMethod toMethod(UsersyncMethodType type,
                 .type(type)
                 .usersyncUrl(Objects.requireNonNull(properties.getUrl()))
                 .redirectUrl(toRedirectUrl(cookieFamilyName, externalUrl, properties.getUidMacro()))
-                .supportCORS(properties.getSupportCors())
                 .formatOverride(properties.getFormatOverride())
                 .build();
     }
diff --git a/src/main/resources/bidder-config/aax.yaml b/src/main/resources/bidder-config/aax.yaml
index b695864b8c2..7ed2850bf91 100644
--- a/src/main/resources/bidder-config/aax.yaml
+++ b/src/main/resources/bidder-config/aax.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: aax
       redirect:
         url: https://c.aaxads.com/aacxc.php?fv=1&wbsh=psa&ryvlg=setstatuscode&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<vsid>'
diff --git a/src/main/resources/bidder-config/acuityads.yaml b/src/main/resources/bidder-config/acuityads.yaml
index 5388564c5d0..6b5ba8515c2 100644
--- a/src/main/resources/bidder-config/acuityads.yaml
+++ b/src/main/resources/bidder-config/acuityads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: acuityads
       redirect:
         url: https://cs.admanmedia.com/sync/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/adagio.yaml b/src/main/resources/bidder-config/adagio.yaml
index ce66d58ce86..f98fe9d2af5 100644
--- a/src/main/resources/bidder-config/adagio.yaml
+++ b/src/main/resources/bidder-config/adagio.yaml
@@ -24,5 +24,4 @@ adapters:
       cookie-family-name: adagio
       iframe:
         url: https://u-REGION.4dex.io/pbserver/usync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '{UID}'
diff --git a/src/main/resources/bidder-config/adf.yaml b/src/main/resources/bidder-config/adf.yaml
index 738b737c11c..827e4f2c8fa 100644
--- a/src/main/resources/bidder-config/adf.yaml
+++ b/src/main/resources/bidder-config/adf.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: adf
       redirect:
         url: https://c1.adform.net/cookie?redirect_url={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/adkernel.yaml b/src/main/resources/bidder-config/adkernel.yaml
index 7158bcec57b..36b9563c0d8 100644
--- a/src/main/resources/bidder-config/adkernel.yaml
+++ b/src/main/resources/bidder-config/adkernel.yaml
@@ -14,11 +14,9 @@ adapters:
           cookie-family-name: xapads
           redirect:
             url: https://sync.adkernel.com/user-sync?t=image&zone=284803&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-            support-cors: false
             uid-macro: '{UID}'
           iframe:
             url: https://sync.adkernel.com/user-sync?t=iframe&zone=284803&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-            support-cors: false
             uid-macro: '{UID}'
     meta-info:
       maintainer-email: prebid-dev@adkernel.com
@@ -38,5 +36,4 @@ adapters:
       cookie-family-name: adkernel
       redirect:
         url: https://sync.adkernel.com/user-sync?t=image&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '{UID}'
diff --git a/src/main/resources/bidder-config/adkerneladn.yaml b/src/main/resources/bidder-config/adkerneladn.yaml
index d3df44cf049..00a16cfef78 100644
--- a/src/main/resources/bidder-config/adkerneladn.yaml
+++ b/src/main/resources/bidder-config/adkerneladn.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: adkernelAdn
       redirect:
         url: https://tag.adkernel.com/syncr?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/adman.yaml b/src/main/resources/bidder-config/adman.yaml
index 41a11563f59..4cbf34b2227 100644
--- a/src/main/resources/bidder-config/adman.yaml
+++ b/src/main/resources/bidder-config/adman.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: adman
       redirect:
         url: https://sync.admanmedia.com/pbs.gif?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/admixer.yaml b/src/main/resources/bidder-config/admixer.yaml
index f7b99f440aa..be656b2369d 100644
--- a/src/main/resources/bidder-config/admixer.yaml
+++ b/src/main/resources/bidder-config/admixer.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: admixer
       redirect:
         url: https://inv-nets.admixer.net/adxcm.aspx?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir=1&rurl={{redirect_url}}
-        support-cors: false
         uid-macro: '$$visitor_cookie$$'
diff --git a/src/main/resources/bidder-config/adot.yaml b/src/main/resources/bidder-config/adot.yaml
index fa4a5a5f489..7de0d18fb24 100644
--- a/src/main/resources/bidder-config/adot.yaml
+++ b/src/main/resources/bidder-config/adot.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: adot
       redirect:
         url: https://sync.adotmob.com/cookie/pbs?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '{amob_user_id}'
diff --git a/src/main/resources/bidder-config/adpone.yaml b/src/main/resources/bidder-config/adpone.yaml
index c40c6eb0e5c..1e4397373b9 100644
--- a/src/main/resources/bidder-config/adpone.yaml
+++ b/src/main/resources/bidder-config/adpone.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: adpone
       redirect:
         url: https://usersync.adpone.com/csync?redir={{redirect_url}}
-        support-cors: false
         uid-macro: '{uid}'
diff --git a/src/main/resources/bidder-config/adprime.yaml b/src/main/resources/bidder-config/adprime.yaml
index 7ff74879e01..84a03ae5e86 100644
--- a/src/main/resources/bidder-config/adprime.yaml
+++ b/src/main/resources/bidder-config/adprime.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: adprime
       iframe:
         url: https://sync.adprime.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://sync.adprime.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/adquery.yaml b/src/main/resources/bidder-config/adquery.yaml
index 543a16b8066..188aacf5a03 100644
--- a/src/main/resources/bidder-config/adquery.yaml
+++ b/src/main/resources/bidder-config/adquery.yaml
@@ -12,5 +12,4 @@ adapters:
       cookie-family-name: adquery
       iframe:
         url: https://api.adquery.io/storage?gdpr={{gdpr}}&consent={{gdpr_consent}}&ccpa_consent={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/adtonos.yaml b/src/main/resources/bidder-config/adtonos.yaml
index e1a19fbc6eb..be014afc099 100644
--- a/src/main/resources/bidder-config/adtonos.yaml
+++ b/src/main/resources/bidder-config/adtonos.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: adtonos
       redirect:
         url: https://play.adtonos.com/redir?to={{redirect_url}}
-        support-cors: false
         uid-macro: '@UUID@'
diff --git a/src/main/resources/bidder-config/aduptech.yaml b/src/main/resources/bidder-config/aduptech.yaml
index 302051085bd..fab09685d4c 100644
--- a/src/main/resources/bidder-config/aduptech.yaml
+++ b/src/main/resources/bidder-config/aduptech.yaml
@@ -16,10 +16,8 @@ adapters:
       cookie-family-name: aduptech
       iframe:
         url: https://rtb.d.adup-tech.com/service/sync?iframe=1&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://rtb.d.adup-tech.com/service/sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
     target-currency: "EUR"
diff --git a/src/main/resources/bidder-config/advangelists.yaml b/src/main/resources/bidder-config/advangelists.yaml
index 47423726cfb..53acc3b8640 100644
--- a/src/main/resources/bidder-config/advangelists.yaml
+++ b/src/main/resources/bidder-config/advangelists.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: advangelists
       iframe:
         url: https://nep.advangelists.com/xp/user-sync?acctid={aid}&&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/adverxo.yaml b/src/main/resources/bidder-config/adverxo.yaml
index b363a70bc08..624bd63f3c7 100644
--- a/src/main/resources/bidder-config/adverxo.yaml
+++ b/src/main/resources/bidder-config/adverxo.yaml
@@ -12,11 +12,9 @@ adapters:
           iframe:
             url: https://cittamatra.com/usync?type=iframe&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
             uid-macro: '$UID'
-            support-cors: false
           redirect:
             url: https://cittamatra.com/usync?type=image&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
             uid-macro: '$UID'
-            support-cors: false
       bidsmind:
         enabled: false
         endpoint: https://bidsmind.pbsadverxo.com/auction?id={{adUnitId}}&auth={{auth}}
@@ -26,11 +24,9 @@ adapters:
           iframe:
             url: https://taetee.com/usync?type=iframe&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
             uid-macro: '$UID'
-            support-cors: false
           redirect:
             url: https://taetee.com/usync?type=image&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
             uid-macro: '$UID'
-            support-cors: false
     meta-info:
       maintainer-email: developer@adverxo.com
       app-media-types:
@@ -47,10 +43,8 @@ adapters:
       cookie-family-name: adverxo
       iframe:
         url: https://pbsadverxo.com/usync?type=iframe&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://pbsadverxo.com/usync?type=image&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
 
diff --git a/src/main/resources/bidder-config/adyoulike.yaml b/src/main/resources/bidder-config/adyoulike.yaml
index 658bfcb4401..b70b1ca0cb6 100644
--- a/src/main/resources/bidder-config/adyoulike.yaml
+++ b/src/main/resources/bidder-config/adyoulike.yaml
@@ -14,9 +14,7 @@ adapters:
       cookie-family-name: adyoulike
       iframe:
         url: https://visitor.omnitagjs.com/visitor/isync?uid=19340f4f097d16f41f34fc0274981ca4&name=PrebidServer&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&url={{redirect_url}}
-        support-cors: false
         uid-macro: '[BUYER_USERID]'
       redirect:
         url: https://visitor.omnitagjs.com/visitor/bsync?uid=19340f4f097d16f41f34fc0274981ca4&name=PrebidServer&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&url={{redirect_url}}
-        support-cors: false
         uid-macro: '[BUYER_USERID]'
diff --git a/src/main/resources/bidder-config/aidem.yaml b/src/main/resources/bidder-config/aidem.yaml
index 5465aa6f558..8514905343a 100644
--- a/src/main/resources/bidder-config/aidem.yaml
+++ b/src/main/resources/bidder-config/aidem.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: aidem
       redirect:
         url: https://gum.aidemsrv.com/prebid_sync?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/aja.yaml b/src/main/resources/bidder-config/aja.yaml
index a815655305e..5a2fd197bcf 100644
--- a/src/main/resources/bidder-config/aja.yaml
+++ b/src/main/resources/bidder-config/aja.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: aja
       redirect:
         url: https://ad.as.amanad.adtdp.com/v1/sync/ssp?ssp=4&gdpr={{gdpr}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '%s'
diff --git a/src/main/resources/bidder-config/alkimi.yaml b/src/main/resources/bidder-config/alkimi.yaml
index 1a4173a4ed3..96fd2ed7657 100644
--- a/src/main/resources/bidder-config/alkimi.yaml
+++ b/src/main/resources/bidder-config/alkimi.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: alkimi
       redirect:
         url: https://user-sync.alkimi-onboarding.com/ssp-sync?gdpr={{gdpr}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/amx.yaml b/src/main/resources/bidder-config/amx.yaml
index 3dd46514e85..2343bf690a7 100644
--- a/src/main/resources/bidder-config/amx.yaml
+++ b/src/main/resources/bidder-config/amx.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: amx
       redirect:
         url: https://prebid.a-mo.net/cchain/0?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&cb={{redirect_url}}
-        support-cors: false
         uid-macro: "$UID"
       iframe:
         url: https://prebid.a-mo.net/isyn?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&s=pbs&cb={{redirect_url}}
         uid-macro: "$UID"
-        support-cors: false
diff --git a/src/main/resources/bidder-config/apacdex.yaml b/src/main/resources/bidder-config/apacdex.yaml
index 0a929be2172..a4cc995c373 100644
--- a/src/main/resources/bidder-config/apacdex.yaml
+++ b/src/main/resources/bidder-config/apacdex.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: apacdex
       iframe:
         url: https://sync.quantumdex.io/usersync/pbs?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://sync.quantumdex.io/getuid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/appnexus.yaml b/src/main/resources/bidder-config/appnexus.yaml
index 6928936bc5f..359f0c36749 100644
--- a/src/main/resources/bidder-config/appnexus.yaml
+++ b/src/main/resources/bidder-config/appnexus.yaml
@@ -21,7 +21,6 @@ adapters:
       cookie-family-name: adnxs
       redirect:
         url: https://ib.adnxs.com/getuid?{{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
     platform-id: 5
     iab-categories:
diff --git a/src/main/resources/bidder-config/aso.yaml b/src/main/resources/bidder-config/aso.yaml
index 5f3bdad4829..ad2b319d4f2 100644
--- a/src/main/resources/bidder-config/aso.yaml
+++ b/src/main/resources/bidder-config/aso.yaml
@@ -11,7 +11,6 @@ adapters:
           cookie-family-name: bcmint
           redirect:
             url: https://track.datacygnal.io/sync/v2?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&usp={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '{uid}'
       bidagency:
         enabled: false
@@ -22,7 +21,6 @@ adapters:
           cookie-family-name: bidagency
           redirect:
             url: https://track.bidgx.com/sync/v2?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&usp={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '{uid}'
       kuantyx:
         enabled: false
@@ -33,7 +31,6 @@ adapters:
           cookie-family-name: kuantyx
           redirect:
             url: https://track.kntxy.com/sync/v2?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&usp={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '{uid}'
     meta-info:
       maintainer-email: support@adsrv.org
@@ -50,5 +47,4 @@ adapters:
       cookie-family-name: aso
       redirect:
         url: https://track.aso1.net/sync/v2?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&usp={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '{uid}'
diff --git a/src/main/resources/bidder-config/avocet.yaml b/src/main/resources/bidder-config/avocet.yaml
index 8bd27b450ab..e2ee0a0dca6 100644
--- a/src/main/resources/bidder-config/avocet.yaml
+++ b/src/main/resources/bidder-config/avocet.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: avocet
       redirect:
         url: https://ads.avct.cloud/getuid?&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&url={{redirect_url}}
-        support-cors: false
         uid-macro: '{{UUID}}'
diff --git a/src/main/resources/bidder-config/axis.yaml b/src/main/resources/bidder-config/axis.yaml
index d4479973816..26a01a78425 100644
--- a/src/main/resources/bidder-config/axis.yaml
+++ b/src/main/resources/bidder-config/axis.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: axis
       redirect:
         url: https://cs.axis-marketplace.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/axonix.yaml b/src/main/resources/bidder-config/axonix.yaml
index e8dd2352cbe..43699eb8e86 100644
--- a/src/main/resources/bidder-config/axonix.yaml
+++ b/src/main/resources/bidder-config/axonix.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: axonix
       redirect:
-        support-cors: false
         url: https://openrtb-us-east-1.axonix.com/syn?redirect={{redirect_url}}
         uid-macro: 'xxEMODO_IDxx'
diff --git a/src/main/resources/bidder-config/beachfront.yaml b/src/main/resources/bidder-config/beachfront.yaml
index 6143fa1e387..90f42df1ce5 100644
--- a/src/main/resources/bidder-config/beachfront.yaml
+++ b/src/main/resources/bidder-config/beachfront.yaml
@@ -15,6 +15,5 @@ adapters:
       cookie-family-name: beachfront
       iframe:
         url: https://sync.bfmio.com/sync_s2s?gdpr={{gdpr}}&url={{redirect_url}}
-        support-cors: false
         uid-macro: '[io_cid]'
     video-endpoint: https://reachms.bfmio.com/bid.json?exchange_id=
diff --git a/src/main/resources/bidder-config/beintoo.yaml b/src/main/resources/bidder-config/beintoo.yaml
index 764bac00d3a..3650d71b3ac 100644
--- a/src/main/resources/bidder-config/beintoo.yaml
+++ b/src/main/resources/bidder-config/beintoo.yaml
@@ -12,5 +12,4 @@ adapters:
       cookie-family-name: beintoo
       iframe:
         url: https://ib.beintoo.com/um?ssp=pbs&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/between.yaml b/src/main/resources/bidder-config/between.yaml
index 9ebe3fd4309..7a51d7a19c3 100644
--- a/src/main/resources/bidder-config/between.yaml
+++ b/src/main/resources/bidder-config/between.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: between
       redirect:
         url: https://ads.betweendigital.com/match?bidder_id=pbs&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&callback_url={{redirect_url}}
-        support-cors: false
         uid-macro: '${USER_ID}'
diff --git a/src/main/resources/bidder-config/bidmyadz.yaml b/src/main/resources/bidder-config/bidmyadz.yaml
index aa1d4dda66f..d4c2d53db46 100644
--- a/src/main/resources/bidder-config/bidmyadz.yaml
+++ b/src/main/resources/bidder-config/bidmyadz.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: bidmyadz
       redirect:
         url: https://cookie-sync.bidmyadz.com/c0f68227d14ed938c6c49f3967cbe9bc?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&red={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/bidtheatre.yaml b/src/main/resources/bidder-config/bidtheatre.yaml
index fd3f7d24d87..4105910440a 100644
--- a/src/main/resources/bidder-config/bidtheatre.yaml
+++ b/src/main/resources/bidder-config/bidtheatre.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: bidtheatre
       redirect:
         url: https://match.adsby.bidtheatre.com/prebidmatch?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/bliink.yaml b/src/main/resources/bidder-config/bliink.yaml
index 5f99b8e002c..8b35b9a62f1 100644
--- a/src/main/resources/bidder-config/bliink.yaml
+++ b/src/main/resources/bidder-config/bliink.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: bliink
       redirect:
         url: https://cookiesync.api.bliink.io/getuid?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&url={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://tag.bliink.io/usersync.html?gdpr={{gdpr}}&gdprConsent={{gdpr_consent}}&uspConsent={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/blis.yaml b/src/main/resources/bidder-config/blis.yaml
index 6d9d50dad69..487075de3c6 100644
--- a/src/main/resources/bidder-config/blis.yaml
+++ b/src/main/resources/bidder-config/blis.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: blis
       redirect:
         url: https://tr.blismedia.com/v1/api/sync/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '%%BLIS_USER_TOKEN%%'
diff --git a/src/main/resources/bidder-config/boldwin.yaml b/src/main/resources/bidder-config/boldwin.yaml
index 3b0855882cf..76d764d4ead 100644
--- a/src/main/resources/bidder-config/boldwin.yaml
+++ b/src/main/resources/bidder-config/boldwin.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: boldwin
       redirect:
-        support-cors: false
         url: https://sync.videowalldirect.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redir={{redirect_url}}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/colossus.yaml b/src/main/resources/bidder-config/colossus.yaml
index 9514160b5a2..38349951398 100644
--- a/src/main/resources/bidder-config/colossus.yaml
+++ b/src/main/resources/bidder-config/colossus.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: colossus
       redirect:
         url: https://sync.colossusssp.com/pbs.gif?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/compass.yaml b/src/main/resources/bidder-config/compass.yaml
index 954cd57eca4..04e3e2598c6 100644
--- a/src/main/resources/bidder-config/compass.yaml
+++ b/src/main/resources/bidder-config/compass.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: compass
       redirect:
         url: https://sa-cs.deliverimp.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
-        support-cors: false
         url: https://sa-cs.deliverimp.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/connatix.yaml b/src/main/resources/bidder-config/connatix.yaml
index 63e1aca65c1..8986eed038d 100644
--- a/src/main/resources/bidder-config/connatix.yaml
+++ b/src/main/resources/bidder-config/connatix.yaml
@@ -16,9 +16,7 @@ adapters:
       iframe:
         url: "https://capi.connatix.com/us/pixel?pId=53&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&callback={{redirect_url}}"
         uid-macro: '[UID]'
-        support-cors: false
       redirect:
         url: "https://capi.connatix.com/us/pixel?pId=52&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&callback={{redirect_url}}"
         uid-macro: '[UID]'
-        support-cors: false
 
diff --git a/src/main/resources/bidder-config/connectad.yaml b/src/main/resources/bidder-config/connectad.yaml
index e51102b891c..c361a530754 100644
--- a/src/main/resources/bidder-config/connectad.yaml
+++ b/src/main/resources/bidder-config/connectad.yaml
@@ -20,7 +20,5 @@ adapters:
       cookie-family-name: connectad
       redirect:
         url: https://sync.connectad.io/ImageSyncer?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&cb={{redirect_url}}
-        support-cors: false
       iframe:
         url: https://sync.connectad.io/iFrameSyncer?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&cb={{redirect_url}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/consumable.yaml b/src/main/resources/bidder-config/consumable.yaml
index 49a528b41c9..720b9356466 100644
--- a/src/main/resources/bidder-config/consumable.yaml
+++ b/src/main/resources/bidder-config/consumable.yaml
@@ -20,4 +20,3 @@ adapters:
       cookie-family-name: consumable
       redirect:
         url: https://e.serverbid.com/udb/9969/match?gdpr={{gdpr}}&euconsent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/contxtful.yaml b/src/main/resources/bidder-config/contxtful.yaml
index 086eb92c1dc..3e567fd50d5 100644
--- a/src/main/resources/bidder-config/contxtful.yaml
+++ b/src/main/resources/bidder-config/contxtful.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: contxtful
       iframe:
         url: https://sync.receptivity.io/pbs/iframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/copper6ssp.yaml b/src/main/resources/bidder-config/copper6ssp.yaml
index 692697b6ea3..a573ec79148 100644
--- a/src/main/resources/bidder-config/copper6ssp.yaml
+++ b/src/main/resources/bidder-config/copper6ssp.yaml
@@ -16,10 +16,8 @@ adapters:
     usersync:
       cookie-family-name: copper6ssp
       redirect:
-        support-cors: false
         url: https://csync.copper6.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
         uid-macro: '[UID]'
       iframe:
-        support-cors: false
         url: https://csync.copper6.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/cpmstar.yaml b/src/main/resources/bidder-config/cpmstar.yaml
index a6745317f53..7b306b9334f 100644
--- a/src/main/resources/bidder-config/cpmstar.yaml
+++ b/src/main/resources/bidder-config/cpmstar.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: cpmstar
       iframe:
         url: https://server.cpmstar.com/usersync.aspx?ifr=1&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://server.cpmstar.com/usersync.aspx?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/criteo.yaml b/src/main/resources/bidder-config/criteo.yaml
index ba89ced1ec4..c9921f5f53e 100644
--- a/src/main/resources/bidder-config/criteo.yaml
+++ b/src/main/resources/bidder-config/criteo.yaml
@@ -23,9 +23,7 @@ adapters:
       cookie-family-name: criteo
       redirect:
         url: https://ssp-sync.criteo.com/user-sync/redirect?gdprapplies={{gdpr}}&gdpr={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}&profile=230
-        support-cors: false
         uid-macro: '${CRITEO_USER_ID}'
       iframe:
         url: https://ssp-sync.criteo.com/user-sync/iframe?gdprapplies={{gdpr}}&gdpr={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}&profile=230
-        support-cors: false
         uid-macro: '${CRITEO_USER_ID}'
diff --git a/src/main/resources/bidder-config/datablocks.yaml b/src/main/resources/bidder-config/datablocks.yaml
index 8062997c3d8..b61b2e361b9 100644
--- a/src/main/resources/bidder-config/datablocks.yaml
+++ b/src/main/resources/bidder-config/datablocks.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: datablocks
       redirect:
         url: https://sync.v5prebid.datablocks.net/s2ssync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '${uid}'
diff --git a/src/main/resources/bidder-config/deepintent.yaml b/src/main/resources/bidder-config/deepintent.yaml
index e87b2f6c18f..a90a88173e2 100644
--- a/src/main/resources/bidder-config/deepintent.yaml
+++ b/src/main/resources/bidder-config/deepintent.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: deepintent
       iframe:
         url: https://match.deepintent.com/usersync/136?id=unk&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '${DI_USER_ID}'
diff --git a/src/main/resources/bidder-config/dianomi.yaml b/src/main/resources/bidder-config/dianomi.yaml
index 6b36d1c29ab..9d5e7b17d4c 100644
--- a/src/main/resources/bidder-config/dianomi.yaml
+++ b/src/main/resources/bidder-config/dianomi.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: dianomi
       iframe:
         url: https://www-prebid.dianomi.com/prebid/usersync/index.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://data.dianomi.com/frontend/usync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/driftpixel.yaml b/src/main/resources/bidder-config/driftpixel.yaml
index 5bba4d9257f..1cdb633441a 100644
--- a/src/main/resources/bidder-config/driftpixel.yaml
+++ b/src/main/resources/bidder-config/driftpixel.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: driftpixel
       redirect:
         url: "https://sync.driftpixel.live/psync?t=s&e=0&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&cb={{redirect_url}}"
-        support-cors: false
         uid-macro: "%USER_ID%"
diff --git a/src/main/resources/bidder-config/dxkulture.yaml b/src/main/resources/bidder-config/dxkulture.yaml
index 739b2ba00af..a1a8484f1b3 100644
--- a/src/main/resources/bidder-config/dxkulture.yaml
+++ b/src/main/resources/bidder-config/dxkulture.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: dxkulture
       redirect:
         url: https://ads.dxkulture.com/usync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&cb={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/emtv.yaml b/src/main/resources/bidder-config/emtv.yaml
index 075af4f8650..019fa244455 100644
--- a/src/main/resources/bidder-config/emtv.yaml
+++ b/src/main/resources/bidder-config/emtv.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: emtv
       redirect:
         url: https://cs.engagemedia.tv/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/emxdigital.yaml b/src/main/resources/bidder-config/emxdigital.yaml
index 34080708c3e..5df8998abc8 100644
--- a/src/main/resources/bidder-config/emxdigital.yaml
+++ b/src/main/resources/bidder-config/emxdigital.yaml
@@ -22,5 +22,4 @@ adapters:
       cookie-family-name: emx_digital
       iframe:
         url: https://cs.emxdgt.com/um?ssp=pbs&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/eplanning.yaml b/src/main/resources/bidder-config/eplanning.yaml
index db89054080a..a417568df80 100644
--- a/src/main/resources/bidder-config/eplanning.yaml
+++ b/src/main/resources/bidder-config/eplanning.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: eplanning
       iframe:
         url: https://ads.us.e-planning.net/uspd/1/?du={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/epsilon.yaml b/src/main/resources/bidder-config/epsilon.yaml
index 44970a25db2..b94142e8dbd 100644
--- a/src/main/resources/bidder-config/epsilon.yaml
+++ b/src/main/resources/bidder-config/epsilon.yaml
@@ -24,5 +24,4 @@ adapters:
       cookie-family-name: epsilon
       redirect:
         url: https://prebid-match.dotomi.com/match/bounce/current?version=1&networkId=72582&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&rurl={{redirect_url}}
-        support-cors: false
     generate-bid-id: true
diff --git a/src/main/resources/bidder-config/evolution.yaml b/src/main/resources/bidder-config/evolution.yaml
index 3101dadcfdb..4bd6f2812ce 100644
--- a/src/main/resources/bidder-config/evolution.yaml
+++ b/src/main/resources/bidder-config/evolution.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: e_volution
       redirect:
         url: https://sync.e-volution.ai/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://sync.e-volution.ai/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/exco.yaml b/src/main/resources/bidder-config/exco.yaml
index df2a4dac0a1..896a6ea9125 100644
--- a/src/main/resources/bidder-config/exco.yaml
+++ b/src/main/resources/bidder-config/exco.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: exco
       redirect:
         url: https://sync.ex.co/v1/user_sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/feedad.yaml b/src/main/resources/bidder-config/feedad.yaml
index fbd8f58627d..616dae4119e 100644
--- a/src/main/resources/bidder-config/feedad.yaml
+++ b/src/main/resources/bidder-config/feedad.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: feedad
       iframe:
         url: https://ortb.feedad.com/1/usersyncs/supply?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: $UID
diff --git a/src/main/resources/bidder-config/freewheelssp.yaml b/src/main/resources/bidder-config/freewheelssp.yaml
index ff042fe76d2..43432fc931d 100644
--- a/src/main/resources/bidder-config/freewheelssp.yaml
+++ b/src/main/resources/bidder-config/freewheelssp.yaml
@@ -13,7 +13,6 @@ adapters:
           cookie-family-name: fwssp
           iframe:
             url: https://user-sync.fwmrm.net/ad/u?mode=pbs-user-sync&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&pbs_redirect={{redirect_url}}
-            support-cors: false
             uid-macro: '#{user.id}'
     meta-info:
       maintainer-email: prebid-maintainer@freewheel.com
@@ -27,5 +26,4 @@ adapters:
       cookie-family-name: freewheelssp
       iframe:
         url: https://ads.stickyadstv.com/pbs-user-sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '{viewerid}'
diff --git a/src/main/resources/bidder-config/frvradn.yaml b/src/main/resources/bidder-config/frvradn.yaml
index 3b06953e207..bce8287a255 100644
--- a/src/main/resources/bidder-config/frvradn.yaml
+++ b/src/main/resources/bidder-config/frvradn.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: frvradn
       iframe:
         url: https://fran.frvr.com/api/v1/sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect_uri={{redirect_url}}
-        support-cors: false
         uid-macro: '{{UID}}'
diff --git a/src/main/resources/bidder-config/gamoshi.yaml b/src/main/resources/bidder-config/gamoshi.yaml
index cde5e65fda0..1189d7acd95 100644
--- a/src/main/resources/bidder-config/gamoshi.yaml
+++ b/src/main/resources/bidder-config/gamoshi.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: gamoshi
       redirect:
         url: https://rtb.gamoshi.io/user_sync_prebid?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&rurl={{redirect_url}}
-        support-cors: false
         uid-macro: '[gusr]'
diff --git a/src/main/resources/bidder-config/generic.yaml b/src/main/resources/bidder-config/generic.yaml
index 9cd5fd280f7..8582b76be5e 100644
--- a/src/main/resources/bidder-config/generic.yaml
+++ b/src/main/resources/bidder-config/generic.yaml
@@ -28,7 +28,6 @@ adapters:
           cookie-family-name: ccx
           redirect:
             url: https://sync.clickonometrics.pl/prebid/set-cookie?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&cb={{redirect_url}}
-            support-cors: false
             uid-macro: '${USER_ID}'
       infytv:
         enabled: false
@@ -61,7 +60,6 @@ adapters:
           redirect:
             url: https://ssp.disqus.com/redirectuser?sid=GET_SID_FROM_ZETA&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
             uid-macro: 'BUYERUID'
-            support-cors: false
       blue:
         enabled: false
         endpoint: https://prebid-us-east-1.getblue.io/?src=prebid
@@ -91,11 +89,9 @@ adapters:
           cookie-family-name: cwire
           redirect:
             url: https://prebid.cwi.re/v1/usersync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&rd={{redirect_url}}
-            support-cors: false
             uid-macro: '$UID'
           iframe:
             url:  https://prebid.cwi.re/v1/usersync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&rd={{redirect_url}}
-            support-cors: false
             uid-macro: '$UID'
       nativo:
         enabled: false
@@ -117,7 +113,6 @@ adapters:
           cookie-family-name: nativo
           redirect:
             url: https://jadserve.postrelease.com/suid/101787?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&ntv_gpp_consent={{gpp}}&ntv_r={{redirect_url}}
-            support-cors: false
             uid-macro: 'NTV_USER_ID'
     meta-info:
       maintainer-email: maintainer@example.com
diff --git a/src/main/resources/bidder-config/globalsun.yaml b/src/main/resources/bidder-config/globalsun.yaml
index 14b7765a0aa..5d2e893f1fa 100644
--- a/src/main/resources/bidder-config/globalsun.yaml
+++ b/src/main/resources/bidder-config/globalsun.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: globalsun
       redirect:
         url: "https://cs.globalsun.io/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}"
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/grid.yaml b/src/main/resources/bidder-config/grid.yaml
index e735a5159f7..8c108cc22cd 100644
--- a/src/main/resources/bidder-config/grid.yaml
+++ b/src/main/resources/bidder-config/grid.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: grid
       redirect:
         url: https://x.bidswitch.net/check_uuid/{{redirect_url}}?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&us_privacy={{us_privacy}}
-        support-cors: false
         uid-macro: '${BSW_UUID}'
diff --git a/src/main/resources/bidder-config/gumgum.yaml b/src/main/resources/bidder-config/gumgum.yaml
index b3ee922dce4..163d8d906a6 100644
--- a/src/main/resources/bidder-config/gumgum.yaml
+++ b/src/main/resources/bidder-config/gumgum.yaml
@@ -14,4 +14,3 @@ adapters:
       cookie-family-name: gumgum
       iframe:
         url: https://rtb.gumgum.com/usync/prbds2s?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/imds.yaml b/src/main/resources/bidder-config/imds.yaml
index 4b37cc73d2f..e75643f95d3 100644
--- a/src/main/resources/bidder-config/imds.yaml
+++ b/src/main/resources/bidder-config/imds.yaml
@@ -25,9 +25,7 @@ adapters:
       cookie-family-name: "imds"
       iframe:
         url: "https://ad-cdn.technoratimedia.com/html/usersync.html?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gppsid={{gpp_sid}}&cb={{redirect_url}}"
-        support-cors: true
         uid-macro: '[USER_ID]'
       redirect:
         url: "https://sync.technoratimedia.com/services?srv=cs&gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gppsid={{gpp_sid}}&cb={{redirect_url}}"
-        support-cors: true
         uid-macro: '[USER_ID]'
diff --git a/src/main/resources/bidder-config/impactify.yaml b/src/main/resources/bidder-config/impactify.yaml
index 4a9b31dfeea..62118f578fe 100644
--- a/src/main/resources/bidder-config/impactify.yaml
+++ b/src/main/resources/bidder-config/impactify.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: impactify
       iframe:
         url: https://sonic.impactify.media/static/cookie_sync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect_url={{redirect_url}}
-        support-cors: false
         uid-macro: '{IMPACTIFY_UID}'
diff --git a/src/main/resources/bidder-config/improvedigital.yaml b/src/main/resources/bidder-config/improvedigital.yaml
index 41af36899bf..8ecca573e19 100644
--- a/src/main/resources/bidder-config/improvedigital.yaml
+++ b/src/main/resources/bidder-config/improvedigital.yaml
@@ -20,9 +20,7 @@ adapters:
       cookie-family-name: improvedigital
       iframe:
         url: https://ad.360yield.com/user_sync?rt=html&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '{PUB_USER_ID}'
       redirect:
         url: https://ad.360yield.com/server_match?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '{PUB_USER_ID}'
diff --git a/src/main/resources/bidder-config/inmobi.yaml b/src/main/resources/bidder-config/inmobi.yaml
index fb5ddb9c7ee..e834816f6f7 100644
--- a/src/main/resources/bidder-config/inmobi.yaml
+++ b/src/main/resources/bidder-config/inmobi.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: inmobi
       iframe:
         url: https://sync.inmobi.com/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '{ID5UID}'
       redirect:
         url: https://sync.inmobi.com/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '{ID5UID}'
diff --git a/src/main/resources/bidder-config/insticator.yaml b/src/main/resources/bidder-config/insticator.yaml
index 7fcf60b877c..74e13e439a6 100644
--- a/src/main/resources/bidder-config/insticator.yaml
+++ b/src/main/resources/bidder-config/insticator.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: insticator
       iframe:
         url: https://usync.ingage.tech?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/intertech.yaml b/src/main/resources/bidder-config/intertech.yaml
index 0f1f4f671b3..3e6964124a5 100644
--- a/src/main/resources/bidder-config/intertech.yaml
+++ b/src/main/resources/bidder-config/intertech.yaml
@@ -13,4 +13,3 @@ adapters:
       redirect-url: /setuid?bidder=intertech&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&uid={UID}
       cookie-family-name: intertech
       type: redirect
-      support-cors: false
diff --git a/src/main/resources/bidder-config/iqzone.yaml b/src/main/resources/bidder-config/iqzone.yaml
index a8292c5033a..5f454d61970 100644
--- a/src/main/resources/bidder-config/iqzone.yaml
+++ b/src/main/resources/bidder-config/iqzone.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: iqzone
       redirect:
         url: https://cs.iqzone.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://cs.iqzone.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/ix.yaml b/src/main/resources/bidder-config/ix.yaml
index 725c2494701..8be976be899 100644
--- a/src/main/resources/bidder-config/ix.yaml
+++ b/src/main/resources/bidder-config/ix.yaml
@@ -21,7 +21,5 @@ adapters:
       cookie-family-name: ix
       redirect:
         url: https://ssum.casalemedia.com/usermatchredir?s=189517&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&cb={{redirect_url}}
-        support-cors: false
       iframe:
         url: https://ssum-sec.casalemedia.com/usermatch?s=184674&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&cb={{redirect_url}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/jixie.yaml b/src/main/resources/bidder-config/jixie.yaml
index bfc87be33b3..9badbc7faa1 100644
--- a/src/main/resources/bidder-config/jixie.yaml
+++ b/src/main/resources/bidder-config/jixie.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: jixie
       redirect:
         url: https://id.jixie.io/api/sync?pid=&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '%%JXUID%%'
diff --git a/src/main/resources/bidder-config/kargo.yaml b/src/main/resources/bidder-config/kargo.yaml
index 56d5e9ea22d..60b7030aad1 100644
--- a/src/main/resources/bidder-config/kargo.yaml
+++ b/src/main/resources/bidder-config/kargo.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: kargo
       redirect:
         url: https://crb.kargo.com/api/v1/dsync/PrebidServer?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/kiviads.yaml b/src/main/resources/bidder-config/kiviads.yaml
index 06ef0c93d0c..9540fc844f2 100644
--- a/src/main/resources/bidder-config/kiviads.yaml
+++ b/src/main/resources/bidder-config/kiviads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: kiviads
       iframe:
         url: https://sync.kiviads.com/pserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/krushmedia.yaml b/src/main/resources/bidder-config/krushmedia.yaml
index 0f2a42e7785..dd38a8fca9b 100644
--- a/src/main/resources/bidder-config/krushmedia.yaml
+++ b/src/main/resources/bidder-config/krushmedia.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: krushmedia
       redirect:
         url: https://cs.krushmedia.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://cs.krushmedia.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/kueezrtb.yaml b/src/main/resources/bidder-config/kueezrtb.yaml
index b26c7ad4ea8..773911040d0 100644
--- a/src/main/resources/bidder-config/kueezrtb.yaml
+++ b/src/main/resources/bidder-config/kueezrtb.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: kueezrtb
       iframe:
         url: https://sync.kueezrtb.com/api/user/html/62ce79e7dd15099534ae5e04?pbs=true&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}
-        support-cors: false
         uid-macro: '${userId}'
diff --git a/src/main/resources/bidder-config/lemmadigital.yaml b/src/main/resources/bidder-config/lemmadigital.yaml
index 3f71b2d016c..47b949f8be9 100644
--- a/src/main/resources/bidder-config/lemmadigital.yaml
+++ b/src/main/resources/bidder-config/lemmadigital.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: lemmadigital
       redirect:
         url: https://sync.lemmadigital.com/setuid?publisher=850&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '${UUID}'
diff --git a/src/main/resources/bidder-config/limelightDigital.yaml b/src/main/resources/bidder-config/limelightDigital.yaml
index 961d909e0d0..12c56b4d4d9 100644
--- a/src/main/resources/bidder-config/limelightDigital.yaml
+++ b/src/main/resources/bidder-config/limelightDigital.yaml
@@ -17,11 +17,9 @@ adapters:
           cookie-family-name: evtech
           iframe:
             url: https://tracker.direct.e-volution.ai/sync.html?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-            support-cors: false
             uid-macro: '{PLL_USER_ID}'
           redirect:
             url: https://tracker.direct.e-volution.ai/sync?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-            support-cors: false
             uid-macro: '{PLL_USER_ID}'
       adsyield:
         enabled: false
diff --git a/src/main/resources/bidder-config/lockerdome.yaml b/src/main/resources/bidder-config/lockerdome.yaml
index c09eff1684d..28abc2621f2 100644
--- a/src/main/resources/bidder-config/lockerdome.yaml
+++ b/src/main/resources/bidder-config/lockerdome.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: lockerdome
       redirect:
         url: https://lockerdome.com/usync/prebidserver?redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '{{uid}}'
diff --git a/src/main/resources/bidder-config/logan.yaml b/src/main/resources/bidder-config/logan.yaml
index 8c1d90e0aba..a6ca69f77bc 100644
--- a/src/main/resources/bidder-config/logan.yaml
+++ b/src/main/resources/bidder-config/logan.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: logan
       redirect:
         url: https://ssp-cookie.logan.ai/pserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/logicad.yaml b/src/main/resources/bidder-config/logicad.yaml
index 2dc7c853689..07739196576 100644
--- a/src/main/resources/bidder-config/logicad.yaml
+++ b/src/main/resources/bidder-config/logicad.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: logicad
       redirect:
         url: https://cr-p31.ladsp.jp/cookiesender/31?r=true&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ru={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/loopme.yaml b/src/main/resources/bidder-config/loopme.yaml
index bee027b1b18..07a239681c4 100644
--- a/src/main/resources/bidder-config/loopme.yaml
+++ b/src/main/resources/bidder-config/loopme.yaml
@@ -20,4 +20,3 @@ adapters:
       redirect-url: /setuid?bidder=loopme&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&uid={udid}
       cookie-family-name: loopme
       type: redirect
-      support-cors: false
diff --git a/src/main/resources/bidder-config/lunamedia.yaml b/src/main/resources/bidder-config/lunamedia.yaml
index 16f32ac2bcf..f1d4533b622 100644
--- a/src/main/resources/bidder-config/lunamedia.yaml
+++ b/src/main/resources/bidder-config/lunamedia.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: lunamedia
       iframe:
         url: https://sync.lunamedia.live/psync?t=s&e=0&cb={{redirect_url}}
-        support-cors: false
         uid-macro: '%USER_ID%'
diff --git a/src/main/resources/bidder-config/marsmedia.yaml b/src/main/resources/bidder-config/marsmedia.yaml
index 3c2f3739198..2b0bdefce28 100644
--- a/src/main/resources/bidder-config/marsmedia.yaml
+++ b/src/main/resources/bidder-config/marsmedia.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: marsmedia
       redirect:
         url: https://dmp.rtbsrv.com/dmp/profiles/cm?p_id=179&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '${UUID}'
diff --git a/src/main/resources/bidder-config/mediago.yaml b/src/main/resources/bidder-config/mediago.yaml
index 1fceb2e034f..260c9bcfc92 100644
--- a/src/main/resources/bidder-config/mediago.yaml
+++ b/src/main/resources/bidder-config/mediago.yaml
@@ -25,5 +25,4 @@ adapters:
       cookie-family-name: mediago
       redirect:
         url: https://trace.mediago.io/ju/cs/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/medianet.yaml b/src/main/resources/bidder-config/medianet.yaml
index cf4119e4147..cafbcb18a00 100644
--- a/src/main/resources/bidder-config/medianet.yaml
+++ b/src/main/resources/bidder-config/medianet.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: medianet
       iframe:
         url: https://hbx.media.net/checksync.php?cid=8CUEHS6F9&cs=87&type=mpbc&cv=37&vsSync=1&uspstring={{us_privacy}}&gdpr={{gdpr}}&gdprstring={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<vsid>'
       redirect:
         url: https://hbx.media.net/cksync.php?cs=1&type=pbs&ovsid=setstatuscode&bidder=medianet&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<vsid>'
diff --git a/src/main/resources/bidder-config/metax.yaml b/src/main/resources/bidder-config/metax.yaml
index 493e0640bfd..e10af13a380 100644
--- a/src/main/resources/bidder-config/metax.yaml
+++ b/src/main/resources/bidder-config/metax.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: metax
       redirect:
         url: https://cm.metaxads.com/pixel?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/mgid.yaml b/src/main/resources/bidder-config/mgid.yaml
index 0d9c754f683..f2f529b785c 100644
--- a/src/main/resources/bidder-config/mgid.yaml
+++ b/src/main/resources/bidder-config/mgid.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: mgid
       redirect:
         url: https://cm.mgid.com/m?cdsp=363893&adu={{redirect_url}}
-        support-cors: false
         uid-macro: '{muidn}'
diff --git a/src/main/resources/bidder-config/mgidx.yaml b/src/main/resources/bidder-config/mgidx.yaml
index 4989dc43461..a456a54bfcb 100644
--- a/src/main/resources/bidder-config/mgidx.yaml
+++ b/src/main/resources/bidder-config/mgidx.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: mgidX
       iframe:
         url: https://cm.mgid.com/i.gif?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&adu={{redirect_url}}
-        support-cors: false
         uid-macro: '{muidn}'
       redirect:
         url: https://cm.mgid.com/i.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&adu={{redirect_url}}
-        support-cors: false
         uid-macro: '{muidn}'
diff --git a/src/main/resources/bidder-config/minutemedia.yaml b/src/main/resources/bidder-config/minutemedia.yaml
index 096f7776ded..9b47d942671 100644
--- a/src/main/resources/bidder-config/minutemedia.yaml
+++ b/src/main/resources/bidder-config/minutemedia.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: minutemedia
       iframe:
         url: https://pbs-cs.minutemedia-prebid.com/pbs-iframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[PBS_UID]'
diff --git a/src/main/resources/bidder-config/missena.yaml b/src/main/resources/bidder-config/missena.yaml
index e16c8a1bdbe..3326728f496 100644
--- a/src/main/resources/bidder-config/missena.yaml
+++ b/src/main/resources/bidder-config/missena.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: missena
       iframe:
         url: https://sync.missena.io/iframe?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/mobilefuse.yaml b/src/main/resources/bidder-config/mobilefuse.yaml
index 6115cd19174..9e3cbc66e90 100644
--- a/src/main/resources/bidder-config/mobilefuse.yaml
+++ b/src/main/resources/bidder-config/mobilefuse.yaml
@@ -23,9 +23,7 @@ adapters:
         cookie-family-name: mobilefuse
         iframe:
           url: https://mfx.mobilefuse.com/usync?us_privacy={{us_privacy}}&pxurl={{redirect_url}}
-          support-cors: false
           uid-macro: '$UID'
         redirect:
           url: https://mfx.mobilefuse.com/getuid?us_privacy={{us_privacy}}&redir={{redirect_url}}
-          support-cors: false
           uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/nextmillennium.yaml b/src/main/resources/bidder-config/nextmillennium.yaml
index 67c34ae62d4..f594c979aed 100644
--- a/src/main/resources/bidder-config/nextmillennium.yaml
+++ b/src/main/resources/bidder-config/nextmillennium.yaml
@@ -16,9 +16,7 @@ adapters:
       cookie-family-name: nextmillennium
       iframe:
         url: https://cookies.nextmillmedia.com/sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[NMUID]'
       redirect:
         url: https://cookies.nextmillmedia.com/sync?type=image&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[NMUID]'
diff --git a/src/main/resources/bidder-config/nexx360.yaml b/src/main/resources/bidder-config/nexx360.yaml
index 7f3820e24d1..f4cb5bae221 100644
--- a/src/main/resources/bidder-config/nexx360.yaml
+++ b/src/main/resources/bidder-config/nexx360.yaml
@@ -24,9 +24,7 @@ adapters:
       cookie-family-name: nexx360
       redirect:
         url: https://fast.nexx360.io/usermatchredir/redirect?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gppsid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://fast.nexx360.io/usermatchredir/iframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/nobid.yaml b/src/main/resources/bidder-config/nobid.yaml
index 2d0aaa34db7..a7d0bac21b4 100644
--- a/src/main/resources/bidder-config/nobid.yaml
+++ b/src/main/resources/bidder-config/nobid.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: nobid
       redirect:
         url: https://ads.servenobid.com/getsync?tek=pbs&ver=1&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://public.servenobid.com/sync.html?tek=pbs&ver=1&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/ogury.yaml b/src/main/resources/bidder-config/ogury.yaml
index b1172241a25..b9859db9d24 100644
--- a/src/main/resources/bidder-config/ogury.yaml
+++ b/src/main/resources/bidder-config/ogury.yaml
@@ -16,8 +16,6 @@ adapters:
       iframe:
         url: https://ms-cookie-sync.presage.io/user-sync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&source=prebids2s
         uid-macro: "{{OGURY_UID}}"
-        support-cors: false
       redirect:
         url: https://ms-cookie-sync.presage.io/user-sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}&us_privacy={{us_privacy}}&redirect={{redirect_url}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&partner=prebids2s
         uid-macro: "{{OGURY_UID}}"
-        support-cors: false
diff --git a/src/main/resources/bidder-config/onetag.yaml b/src/main/resources/bidder-config/onetag.yaml
index 34f2d844158..a160f1f6549 100644
--- a/src/main/resources/bidder-config/onetag.yaml
+++ b/src/main/resources/bidder-config/onetag.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: onetag
       iframe:
         url: https://onetag-sys.com/usync/?redir={{redirect_url}}&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}
-        support-cors: false
         uid-macro: '${USER_TOKEN}'
       redirect:
         url: https://onetag-sys.com/usync/?tag=img&redir={{redirect_url}}&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}
-        support-cors: false
         uid-macro: '${USER_TOKEN}'
diff --git a/src/main/resources/bidder-config/openweb.yaml b/src/main/resources/bidder-config/openweb.yaml
index 1e8bfbea287..b1be0a6d24c 100644
--- a/src/main/resources/bidder-config/openweb.yaml
+++ b/src/main/resources/bidder-config/openweb.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: openweb
       iframe:
         url: https://pbs-cs.openwebmp.com/pbs-iframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[PBS_UID]'
diff --git a/src/main/resources/bidder-config/openx.yaml b/src/main/resources/bidder-config/openx.yaml
index 2a5002667e0..8abda452032 100644
--- a/src/main/resources/bidder-config/openx.yaml
+++ b/src/main/resources/bidder-config/openx.yaml
@@ -19,8 +19,6 @@ adapters:
       cookie-family-name: openx
       iframe:
         url: https://u.openx.net/w/1.0/cm?id=891039ac-a916-42bb-a651-4be9e3b201da&ph=a3aece0c-9e80-4316-8deb-faf804779bd1&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
       redirect:
         url: https://rtb.openx.net/sync/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/operaads.yaml b/src/main/resources/bidder-config/operaads.yaml
index 2fe6b14a167..ac050672dbf 100644
--- a/src/main/resources/bidder-config/operaads.yaml
+++ b/src/main/resources/bidder-config/operaads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: operaads
       redirect:
         url: https://t.adx.opera.com/pbs/sync?gdpr={{gdpr}}&us_privacy={{us_privacy}}&gdpr_consent={{gdpr_consent}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/optidigital.yaml b/src/main/resources/bidder-config/optidigital.yaml
index 756e0d71b2e..c5fd7b917d4 100644
--- a/src/main/resources/bidder-config/optidigital.yaml
+++ b/src/main/resources/bidder-config/optidigital.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: optidigital
       iframe:
         url: https://scripts.opti-digital.com/js/presyncs2s.html?endpoint=optidigital&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/oraki.yaml b/src/main/resources/bidder-config/oraki.yaml
index f5197ac83ff..f9378860127 100644
--- a/src/main/resources/bidder-config/oraki.yaml
+++ b/src/main/resources/bidder-config/oraki.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: oraki
       redirect:
-        support-cors: false
         url: https://sync.oraki.io/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/orbidder.yaml b/src/main/resources/bidder-config/orbidder.yaml
index 2ef39dddd08..d2dec95bcdf 100644
--- a/src/main/resources/bidder-config/orbidder.yaml
+++ b/src/main/resources/bidder-config/orbidder.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: orbidder
       redirect:
         url: https://orbidder.otto.de/pbs-usersync?gdpr={{gdpr}}&consent={{gdpr_consent}}&redirect={{redirect_url}}
-        support-cors: true
         uid-macro: '[ODN_ID]'
diff --git a/src/main/resources/bidder-config/outbrain.yaml b/src/main/resources/bidder-config/outbrain.yaml
index b8c96ac5e95..b97235b2ae1 100644
--- a/src/main/resources/bidder-config/outbrain.yaml
+++ b/src/main/resources/bidder-config/outbrain.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: outbrain
       redirect:
         url: https://prebidtest.zemanta.com/usersync/prebidtest?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&cb={{redirect_url}}
-        support-cors: false
         uid-macro: '__ZUID__'
diff --git a/src/main/resources/bidder-config/ownadx.yaml b/src/main/resources/bidder-config/ownadx.yaml
index c836d847f98..6ce8170e69e 100644
--- a/src/main/resources/bidder-config/ownadx.yaml
+++ b/src/main/resources/bidder-config/ownadx.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: ownadx
       redirect:
         url: https://sync.spoutroserve.com/user-sync?t=image&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&s3={{redirect_url}}
-        support-cors: false
         uid-macro: '{USER_ID}'
diff --git a/src/main/resources/bidder-config/pgamssp.yaml b/src/main/resources/bidder-config/pgamssp.yaml
index 70105cab774..d9524d4f3a3 100644
--- a/src/main/resources/bidder-config/pgamssp.yaml
+++ b/src/main/resources/bidder-config/pgamssp.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: pgamssp
       redirect:
         url: https://cs.pgammedia.com/pserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/playdigo.yaml b/src/main/resources/bidder-config/playdigo.yaml
index adb14424c1b..43f7a7bb331 100644
--- a/src/main/resources/bidder-config/playdigo.yaml
+++ b/src/main/resources/bidder-config/playdigo.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: playdigo
       redirect:
         url: https://cs.playdigo.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://cs.playdigo.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/preciso.yaml b/src/main/resources/bidder-config/preciso.yaml
index 03b95d0a7d1..3394e91bb68 100644
--- a/src/main/resources/bidder-config/preciso.yaml
+++ b/src/main/resources/bidder-config/preciso.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: preciso
       redirect: 
         url: https://ck.2trk.info/rtb/user/usersync.aspx?id=preciso_srl&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&t=2&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '${PRECISO_USER_ID}'
       iframe:
         url: https://ck.2trk.info/rtb/user/usersync.aspx?id=preciso_srl&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&t=4&redir={{redirect_url}}
-        support-cors: false
-        uid-macro: '${PRECISO_USER_ID}'
\ No newline at end of file
+        uid-macro: '${PRECISO_USER_ID}'
diff --git a/src/main/resources/bidder-config/pubmatic.yaml b/src/main/resources/bidder-config/pubmatic.yaml
index 81f9b89f6a1..a20ba9295ab 100644
--- a/src/main/resources/bidder-config/pubmatic.yaml
+++ b/src/main/resources/bidder-config/pubmatic.yaml
@@ -19,8 +19,6 @@ adapters:
       cookie-family-name: pubmatic
       iframe:
         url: https://ads.pubmatic.com/AdServer/js/user_sync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&predirect={{redirect_url}}
-        support-cors: false
       redirect:
         url: https://image8.pubmatic.com/AdServer/ImgSync?p=159706&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pu={{redirect_url}}
-        support-cors: false
         uid-macro: '#PMUID'
diff --git a/src/main/resources/bidder-config/pubrise.yaml b/src/main/resources/bidder-config/pubrise.yaml
index 91fb0e673a8..b9f1fa5831f 100644
--- a/src/main/resources/bidder-config/pubrise.yaml
+++ b/src/main/resources/bidder-config/pubrise.yaml
@@ -16,10 +16,8 @@ adapters:
     usersync:
       cookie-family-name: pubrise
       redirect:
-        support-cors: false
         url: https://sync.pubrise.ai/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
         uid-macro: '[UID]'
       iframe:
-        support-cors: false
         url: https://sync.pubrise.ai/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/pulsepoint.yaml b/src/main/resources/bidder-config/pulsepoint.yaml
index 8cd407e3b74..57a9757b8bb 100644
--- a/src/main/resources/bidder-config/pulsepoint.yaml
+++ b/src/main/resources/bidder-config/pulsepoint.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: pulsepoint
       redirect:
         url: https://bh.contextweb.com/rtset?pid=561205&ev=1&rurl={{redirect_url}}
-        support-cors: false
         uid-macro: '%%VGUID%%'
diff --git a/src/main/resources/bidder-config/qt.yaml b/src/main/resources/bidder-config/qt.yaml
index 8c81123c8ca..e8157535190 100644
--- a/src/main/resources/bidder-config/qt.yaml
+++ b/src/main/resources/bidder-config/qt.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: qt
       redirect:
-        support-cors: false
         url: https://cs.qt.io/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/resetdigital.yaml b/src/main/resources/bidder-config/resetdigital.yaml
index 885916d0d8d..dd50e65383a 100644
--- a/src/main/resources/bidder-config/resetdigital.yaml
+++ b/src/main/resources/bidder-config/resetdigital.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: resetdigital
       redirect:
         url: https://sync.resetdigital.co/csync?pid=rubicon&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$USER_ID'
diff --git a/src/main/resources/bidder-config/richaudience.yaml b/src/main/resources/bidder-config/richaudience.yaml
index 4ee2e2ef453..7f3e2fa5ef0 100644
--- a/src/main/resources/bidder-config/richaudience.yaml
+++ b/src/main/resources/bidder-config/richaudience.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: richaudience
       iframe:
         url: https://sync.richaudience.com/74889303289e27f327ad0c6de7be7264/?consentString={{gdpr_consent}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '[PDID]'
       redirect:
         url: https://sync.richaudience.com/f7872c90c5d3791e2b51f7edce1a0a5d/?p=pbs&consentString={{gdpr_consent}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '[PDID]'
diff --git a/src/main/resources/bidder-config/rise.yaml b/src/main/resources/bidder-config/rise.yaml
index f8244da16f8..87bd7dd5a03 100644
--- a/src/main/resources/bidder-config/rise.yaml
+++ b/src/main/resources/bidder-config/rise.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: rise
       iframe:
         url: https://pbs-cs.yellowblue.io/pbs-iframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[PBS_UID]'
diff --git a/src/main/resources/bidder-config/rtbhouse.yaml b/src/main/resources/bidder-config/rtbhouse.yaml
index 55f6eda1a6b..76031d384c4 100644
--- a/src/main/resources/bidder-config/rtbhouse.yaml
+++ b/src/main/resources/bidder-config/rtbhouse.yaml
@@ -30,4 +30,3 @@ adapters:
       cookie-family-name: rtbhouse
       redirect:
         url: https://creativecdn.com/cm-notify?pi=ASK_FOR_INTEGRATION_ID&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/rubicon.yaml b/src/main/resources/bidder-config/rubicon.yaml
index 8092766796c..1d474defc9e 100644
--- a/src/main/resources/bidder-config/rubicon.yaml
+++ b/src/main/resources/bidder-config/rubicon.yaml
@@ -36,7 +36,6 @@ adapters:
       cookie-family-name: rubicon
       redirect:
         url: GET_FROM_globalsupport@magnite.com
-        support-cors: false
     apex-renderer-url: "https://video-outstream.rubiconproject.com/apex-2.2.1.js"
     XAPI:
       Username: GET_FROM_globalsupport@magnite.com
diff --git a/src/main/resources/bidder-config/salunamedia.yaml b/src/main/resources/bidder-config/salunamedia.yaml
index 4f33a84bd84..9f51ecdcb77 100644
--- a/src/main/resources/bidder-config/salunamedia.yaml
+++ b/src/main/resources/bidder-config/salunamedia.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: sa_lunamedia
       redirect:
         url: https://cookie.lmgssp.com/pserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/seedingAlliance.yaml b/src/main/resources/bidder-config/seedingAlliance.yaml
index 6f3f64bb8aa..6d338c5bd53 100644
--- a/src/main/resources/bidder-config/seedingAlliance.yaml
+++ b/src/main/resources/bidder-config/seedingAlliance.yaml
@@ -12,7 +12,6 @@ adapters:
           cookie-family-name: suntContent
           redirect:
             url: https://dmp.suntcontent.se/set-uuid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&redirect_url={{redirect_url}}
-            support-cors: false
             uid-macro: '$UID'
       finative:
         enabled: false
@@ -29,5 +28,4 @@ adapters:
       cookie-family-name: seedingAlliance
       redirect:
         url: https://dmp.nativendo.de/set-uuid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&redirect_url={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/seedtag.yaml b/src/main/resources/bidder-config/seedtag.yaml
index 44eed6fd01b..299b7c99e57 100644
--- a/src/main/resources/bidder-config/seedtag.yaml
+++ b/src/main/resources/bidder-config/seedtag.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: seedtag
       iframe:
         url: https://s.seedtag.com/cs/cookiesync/prebid?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&usp_consent={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/sharethrough.yaml b/src/main/resources/bidder-config/sharethrough.yaml
index 5bf1dd4b2ed..f40af39c630 100644
--- a/src/main/resources/bidder-config/sharethrough.yaml
+++ b/src/main/resources/bidder-config/sharethrough.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: sharethrough
       redirect:
         url: https://match.sharethrough.com/FGMrCMMc/v1?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirectUri={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/smaato.yaml b/src/main/resources/bidder-config/smaato.yaml
index d1f93997dc0..4ac642ebf5f 100644
--- a/src/main/resources/bidder-config/smaato.yaml
+++ b/src/main/resources/bidder-config/smaato.yaml
@@ -22,9 +22,7 @@ adapters:
       cookie-family-name: smaato
       redirect:
         url: https://s.ad.smaato.net/c/?adExInit=p&redir={{redirect_url}}&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://s.ad.smaato.net/i/?adExInit=p&redir={{redirect_url}}&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/smartadserver.yaml b/src/main/resources/bidder-config/smartadserver.yaml
index 343bec392de..9f56183e5c2 100644
--- a/src/main/resources/bidder-config/smartadserver.yaml
+++ b/src/main/resources/bidder-config/smartadserver.yaml
@@ -24,5 +24,4 @@ adapters:
       cookie-family-name: smartadserver
       redirect:
         url: https://ssbsync-global.smartadserver.com/api/sync?callerId=5&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirectUri={{redirect_url}}
-        support-cors: false
         uid-macro: '[ssb_sync_pid]'
diff --git a/src/main/resources/bidder-config/smartrtb.yaml b/src/main/resources/bidder-config/smartrtb.yaml
index 25fb64d832a..dacd7d1e3f1 100644
--- a/src/main/resources/bidder-config/smartrtb.yaml
+++ b/src/main/resources/bidder-config/smartrtb.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: smartrtb
       redirect:
         url: https://market-global.smrtb.com/sync/all?nid=smartrtb&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&rr={{redirect_url}}
-        support-cors: false
         uid-macro: '{XID}'
diff --git a/src/main/resources/bidder-config/smartyads.yaml b/src/main/resources/bidder-config/smartyads.yaml
index 72411680d9e..1802c383886 100644
--- a/src/main/resources/bidder-config/smartyads.yaml
+++ b/src/main/resources/bidder-config/smartyads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: smartyads
       redirect:
         url: https://us.ck-ie.com/yhsfle286.gif?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '{$PARTNER_UID}'
diff --git a/src/main/resources/bidder-config/smilewanted.yaml b/src/main/resources/bidder-config/smilewanted.yaml
index 3cac81ccae3..0e0be07dd66 100644
--- a/src/main/resources/bidder-config/smilewanted.yaml
+++ b/src/main/resources/bidder-config/smilewanted.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: smilewanted
       redirect:
         url: https://csync.smilewanted.com/getuid?source=prebid-server&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/smoot.yaml b/src/main/resources/bidder-config/smoot.yaml
index a1690cbb8ba..2260e1f78c0 100644
--- a/src/main/resources/bidder-config/smoot.yaml
+++ b/src/main/resources/bidder-config/smoot.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: smoot
       redirect:
-        support-cors: false
         url: 'https://usync.smxconv.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}'
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/sonobi.yaml b/src/main/resources/bidder-config/sonobi.yaml
index c6405555f1a..459ee8d56d0 100644
--- a/src/main/resources/bidder-config/sonobi.yaml
+++ b/src/main/resources/bidder-config/sonobi.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: sonobi
       iframe:
         url: https://sync.go.sonobi.com/uc.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&loc={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://sync.go.sonobi.com/us.gif?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&loc={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/sovrn.yaml b/src/main/resources/bidder-config/sovrn.yaml
index 8f74ae266b6..6568b6db4c9 100644
--- a/src/main/resources/bidder-config/sovrn.yaml
+++ b/src/main/resources/bidder-config/sovrn.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: sovrn
       redirect:
         url: https://ap.lijit.com/pixel?redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://ap.lijit.com/beacon/prebid-server/?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&url={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/sparteo.yaml b/src/main/resources/bidder-config/sparteo.yaml
index 5dd9dd19b1d..0ac0cecf99f 100644
--- a/src/main/resources/bidder-config/sparteo.yaml
+++ b/src/main/resources/bidder-config/sparteo.yaml
@@ -17,4 +17,3 @@ adapters:
       cookie-family-name: sparteo
       iframe:
         url: "https://sync.sparteo.com/s2s_sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&&gpp_sid={{gpp_sid}}&redirect_url={{redirect_url}}"
-        support-cors: true
diff --git a/src/main/resources/bidder-config/sspbc.yaml b/src/main/resources/bidder-config/sspbc.yaml
index e81c64f7069..3b08be93531 100644
--- a/src/main/resources/bidder-config/sspbc.yaml
+++ b/src/main/resources/bidder-config/sspbc.yaml
@@ -12,9 +12,7 @@ adapters:
       cookie-family-name: sspbc
       iframe:
         url: https://ssp.wp.pl/bidder/usersync?tcf=2&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://ssp.wp.pl/v1/sync/prebid-server/pixel?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&redirect={{redirect_url}}
-        support-cors: false
-        uid-macro: '$UID'
\ No newline at end of file
+        uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/stroeercore.yaml b/src/main/resources/bidder-config/stroeercore.yaml
index cf7bb9ecd1c..046d153398d 100644
--- a/src/main/resources/bidder-config/stroeercore.yaml
+++ b/src/main/resources/bidder-config/stroeercore.yaml
@@ -15,7 +15,5 @@ adapters:
       cookie-family-name: stroeerCore
       iframe:
         url: https://js.adscale.de/pbsync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&redirect={{redirect_url}}
-        support-cors: false
       redirect:
         url: https://ih.adscale.de/uu?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&cburl={{redirect_url}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/taboola.yaml b/src/main/resources/bidder-config/taboola.yaml
index f5cc2bfeb62..14fda9559ec 100644
--- a/src/main/resources/bidder-config/taboola.yaml
+++ b/src/main/resources/bidder-config/taboola.yaml
@@ -16,10 +16,8 @@ adapters:
       cookie-family-name: taboola
       redirect:
         url: https://trc.taboola.com/sg/ps/1/cm?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<TUID>'
       iframe:
         url: https://cdn.taboola.com/scripts/ps-sync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<TUID>'
 
diff --git a/src/main/resources/bidder-config/tappx.yaml b/src/main/resources/bidder-config/tappx.yaml
index ef6541beb8f..87333402d39 100644
--- a/src/main/resources/bidder-config/tappx.yaml
+++ b/src/main/resources/bidder-config/tappx.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: tappx
       iframe:
         url: https://ssp.api.tappx.com/cs/usersync.php?gdpr_optin={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&type=iframe&ruid={{redirect_url}}
-        support-cors: false
         uid-macro: '{{TPPXUID}}'
diff --git a/src/main/resources/bidder-config/teal.yaml b/src/main/resources/bidder-config/teal.yaml
index d5393b7d29c..fa3e848d241 100644
--- a/src/main/resources/bidder-config/teal.yaml
+++ b/src/main/resources/bidder-config/teal.yaml
@@ -27,4 +27,3 @@ adapters:
       cookie-family-name: teal
       iframe:
         url: https://bids.ws/load-pbs.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect_url={{redirect_url}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/telaria.yaml b/src/main/resources/bidder-config/telaria.yaml
index 20db2bf7c96..efbcf963593 100644
--- a/src/main/resources/bidder-config/telaria.yaml
+++ b/src/main/resources/bidder-config/telaria.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: telaria
       redirect:
         url: https://pbs.publishers.tremorhub.com/pubsync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[tvid]'
diff --git a/src/main/resources/bidder-config/teqblaze.yaml b/src/main/resources/bidder-config/teqblaze.yaml
index c358ac92f9a..d4d3dd0bddb 100644
--- a/src/main/resources/bidder-config/teqblaze.yaml
+++ b/src/main/resources/bidder-config/teqblaze.yaml
@@ -17,7 +17,6 @@ adapters:
           cookie-family-name: rocketlab
           redirect:
             url: https://usync.rocketlab.ai/pbserver?gdpr={{gdpr}}&consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
       appStockSSP:
         enabled: false
@@ -31,11 +30,9 @@ adapters:
           cookie-family-name: appStockSSP
           redirect:
             url: https://csync.al-ad.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
           iframe:
             url: "https://csync.al-ad.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}"
-            support-cors: false
             uid-macro: '[UID]'
       gravite:
         enabled: false
@@ -53,11 +50,9 @@ adapters:
           cookie-family-name: bidfuse
           redirect:
             url: https://syncbf.bidfuse.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
           iframe:
             url: https://syncbf.bidfuse.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
       adsinteractive:
         enabled: false
@@ -70,11 +65,9 @@ adapters:
           cookie-family-name: adsinteractive
           redirect:
             url: https://cstb.adsinteractive.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
           iframe:
             url: https://cstb.adsinteractive.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
       progx:
         enabled: false
@@ -87,11 +80,9 @@ adapters:
           cookie-family-name: progx
           iframe:
             url: https://sync.progrtb.com/pbserverIframe?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&pbserverUrl={{.RedirectURL}}
-            support-cors: false
             uid-macro: '[UID]'
           redirect:
             url: https://sync.progrtb.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-            support-cors: false
             uid-macro: '[UID]'
     meta-info:
       maintainer-email: github@teqblaze.com
diff --git a/src/main/resources/bidder-config/theadx.yaml b/src/main/resources/bidder-config/theadx.yaml
index b9440fa5776..f956703eb05 100644
--- a/src/main/resources/bidder-config/theadx.yaml
+++ b/src/main/resources/bidder-config/theadx.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: theadx
       redirect:
         url: https://ssp.theadx.com/cookie?redirect_url={{redirect_url}}&?pbs=1
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/thirtythreeacross.yaml b/src/main/resources/bidder-config/thirtythreeacross.yaml
index 98630182983..63eeebea03e 100644
--- a/src/main/resources/bidder-config/thirtythreeacross.yaml
+++ b/src/main/resources/bidder-config/thirtythreeacross.yaml
@@ -21,5 +21,4 @@ adapters:
       cookie-family-name: 33across
       iframe:
         url: https://ssc-cms.33across.com/ps/?m=xch&rt=html&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&id=zzz000000000002zzz&ru={{redirect_url}}
-        support-cors: false
         uid-macro: '33XUSERID33X'
diff --git a/src/main/resources/bidder-config/tpmn.yaml b/src/main/resources/bidder-config/tpmn.yaml
index 35041d577a2..62d6ae66206 100644
--- a/src/main/resources/bidder-config/tpmn.yaml
+++ b/src/main/resources/bidder-config/tpmn.yaml
@@ -20,4 +20,3 @@ adapters:
       iframe:
         url: https://gat.tpmn.io/sync/redirect?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
         uid-macro: $UID
-        support-cors: false
diff --git a/src/main/resources/bidder-config/triplelift.yaml b/src/main/resources/bidder-config/triplelift.yaml
index 446825e33dc..aedb9963d54 100644
--- a/src/main/resources/bidder-config/triplelift.yaml
+++ b/src/main/resources/bidder-config/triplelift.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: triplelift
       iframe:
         url: https://eb2.3lift.com/sync?gdpr={{gdpr}}&cmp_cs={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://eb2.3lift.com/getuid?gdpr={{gdpr}}&cmp_cs={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/tripleliftnative.yaml b/src/main/resources/bidder-config/tripleliftnative.yaml
index e6c1f106f62..e206a3e3a2f 100644
--- a/src/main/resources/bidder-config/tripleliftnative.yaml
+++ b/src/main/resources/bidder-config/tripleliftnative.yaml
@@ -14,10 +14,8 @@ adapters:
       cookie-family-name: triplelift_native
       iframe:
         url: https://eb2.3lift.com/sync?gdpr={{gdpr}}&cmp_cs={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://eb2.3lift.com/getuid?gdpr={{gdpr}}&cmp_cs={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
     whitelist:
diff --git a/src/main/resources/bidder-config/trustedstack.yaml b/src/main/resources/bidder-config/trustedstack.yaml
index 3685e3e93a2..52bf27cc557 100644
--- a/src/main/resources/bidder-config/trustedstack.yaml
+++ b/src/main/resources/bidder-config/trustedstack.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: trustedstack
       iframe:
         url: https://hb.trustedstack.com/checksync.php?cid=TS2Q14L8J&cs=87&type=mpbc&cv=37&vsSync=1&uspstring={{us_privacy}}&gdpr={{gdpr}}&gdprstring={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<vsid>'
       redirect:
         url: https://hb.trustedstack.com/cksync?cs=1&type=pbs&ovsid=setstatuscode&bidder=trustedstack&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '<vsid>'
diff --git a/src/main/resources/bidder-config/ucfunnel.yaml b/src/main/resources/bidder-config/ucfunnel.yaml
index 0aa40be2f6e..e7b4eebd3d6 100644
--- a/src/main/resources/bidder-config/ucfunnel.yaml
+++ b/src/main/resources/bidder-config/ucfunnel.yaml
@@ -16,5 +16,4 @@ adapters:
       redirect:
   # for syncing to work, please register your Prebid Server domain with the contact email above
         url: https://sync.aralego.com/idsync?gdpr={{gdpr}}}&gdpr_consent={{gdpr_consent}}&usprivacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: 'SspCookieUserId'
diff --git a/src/main/resources/bidder-config/undertone.yaml b/src/main/resources/bidder-config/undertone.yaml
index e18f3afa6f8..69cf476d2c7 100644
--- a/src/main/resources/bidder-config/undertone.yaml
+++ b/src/main/resources/bidder-config/undertone.yaml
@@ -18,4 +18,3 @@ adapters:
       iframe:
         url: https://cdn.undertone.com/js/usersync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
         uid-macro: '$UID'
-        support-cors: false
diff --git a/src/main/resources/bidder-config/unruly.yaml b/src/main/resources/bidder-config/unruly.yaml
index 0b239b0a3f7..9eb118cb37d 100644
--- a/src/main/resources/bidder-config/unruly.yaml
+++ b/src/main/resources/bidder-config/unruly.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: unruly
       redirect:
         url: https://sync.1rx.io/usersync2/rmphb?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[RX_UUID]'
diff --git a/src/main/resources/bidder-config/vidazoo.yaml b/src/main/resources/bidder-config/vidazoo.yaml
index adb9b9758a5..cc7406f5608 100644
--- a/src/main/resources/bidder-config/vidazoo.yaml
+++ b/src/main/resources/bidder-config/vidazoo.yaml
@@ -10,7 +10,6 @@ adapters:
           vendor-id: 1463
           iframe:
             url: https://sync.omni-dex.io/api/user/html/6810d0c7f163277130f3d7a9?pbs=true&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}
-            support-cors: false
             uid-macro: '${userId}'
       tagoras:
         endpoint: https://exchange.tagoras.io/openrtb/
@@ -21,7 +20,6 @@ adapters:
           cookie-family-name: tagoras
           iframe:
             url: https://sync.tagoras.io/api/user/html/6819bdc3e6bb44545c55f843?pbs=true&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}
-            support-cors: false
             uid-macro: '${userId}'
     endpoint-compression: gzip
     ortb-version: "2.6"
@@ -39,5 +37,4 @@ adapters:
       cookie-family-name: vidazoo
       iframe:
         url: https://sync.cootlogix.com/api/user/html/pbs_sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}
-        support-cors: false
         uid-macro: '${userId}'
diff --git a/src/main/resources/bidder-config/videobyte.yaml b/src/main/resources/bidder-config/videobyte.yaml
index 9d4223748fa..8b0ff1afd67 100644
--- a/src/main/resources/bidder-config/videobyte.yaml
+++ b/src/main/resources/bidder-config/videobyte.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: videobyte
       redirect:
         url: https://x.videobyte.com/usync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&cb={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/vidoomy.yaml b/src/main/resources/bidder-config/vidoomy.yaml
index f43815df7d9..b2e2e823675 100644
--- a/src/main/resources/bidder-config/vidoomy.yaml
+++ b/src/main/resources/bidder-config/vidoomy.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: vidoomy
       iframe:
         url: https://vid.vidoomy.com/sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirect={{redirect_url}}
-        support-cors: false
         uid-macro: '{{VID}}'
diff --git a/src/main/resources/bidder-config/visiblemeasures.yaml b/src/main/resources/bidder-config/visiblemeasures.yaml
index abbbb13da48..d3cdae68159 100644
--- a/src/main/resources/bidder-config/visiblemeasures.yaml
+++ b/src/main/resources/bidder-config/visiblemeasures.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: visiblemeasures
       redirect:
         url: https://cs.visiblemeasures.com/pbserver?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&ccpa={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/visx.yaml b/src/main/resources/bidder-config/visx.yaml
index df8384fc6c1..190b244d86b 100644
--- a/src/main/resources/bidder-config/visx.yaml
+++ b/src/main/resources/bidder-config/visx.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: visx
       redirect:
         url: https://t.visx.net/s2s_sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redir={{redirect_url}}
-        support-cors: false
         uid-macro: '${UUID}'
diff --git a/src/main/resources/bidder-config/vox.yaml b/src/main/resources/bidder-config/vox.yaml
index 503653d64bd..ea34fd567cf 100644
--- a/src/main/resources/bidder-config/vox.yaml
+++ b/src/main/resources/bidder-config/vox.yaml
@@ -18,4 +18,3 @@ adapters:
       iframe:
         url: https://ssp.hybrid.ai/prebid/server/v1/userSync?consent={{gdpr_consent}}&redirect={{redirect_url}}
         uid-macro: $UID
-        support-cors: false
diff --git a/src/main/resources/bidder-config/vrtcal.yaml b/src/main/resources/bidder-config/vrtcal.yaml
index 1373df9e4f6..b7598ba0af8 100644
--- a/src/main/resources/bidder-config/vrtcal.yaml
+++ b/src/main/resources/bidder-config/vrtcal.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: vrtcal
       redirect:
         url: https://usync.vrtcal.com/i?ssp=1804&synctype=redirect&us_privacy={{us_privacy}}&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&surl={{redirect_url}}
-        support-cors: false
         uid-macro: '$$VRTCALUSER$$'
       iframe:
         url: https://usync.vrtcal.com/i?ssp=1804&synctype=iframe&us_privacy={{us_privacy}}&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&surl={{redirect_url}}
-        support-cors: false
         uid-macro: '$$VRTCALUSER$$'
diff --git a/src/main/resources/bidder-config/xeworks.yaml b/src/main/resources/bidder-config/xeworks.yaml
index 7bc0bf4c0be..f8daba3f239 100644
--- a/src/main/resources/bidder-config/xeworks.yaml
+++ b/src/main/resources/bidder-config/xeworks.yaml
@@ -18,11 +18,9 @@ adapters:
           cookie-family-name: adipolo
           redirect:
             url: https://sync.adipolo.live/psync?t=s&e=0&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&cb={{redirect_url}}
-            support-cors: false
             uid-macro: '$UID'
           iframe:
             url: https://sync.adipolo.live/static/adisync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&cb={{redirect_url}}
-            support-cors: false
             uid-macro: '$UID'
     meta-info:
       maintainer-email: team@xe.works
@@ -40,4 +38,3 @@ adapters:
       cookie-family-name: xeworks
       redirect:
         url: GET_FROM_team@xe.works
-        support-cors: false
diff --git a/src/main/resources/bidder-config/yahooAds.yaml b/src/main/resources/bidder-config/yahooAds.yaml
index 78c54a4d1bd..d5719d39926 100644
--- a/src/main/resources/bidder-config/yahooAds.yaml
+++ b/src/main/resources/bidder-config/yahooAds.yaml
@@ -20,4 +20,3 @@ adapters:
       cookie-family-name: yahooAds
       redirect:
         url: https://ups.analytics.yahoo.com/ups/58401/sync?redir=true&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/yandex.yaml b/src/main/resources/bidder-config/yandex.yaml
index 11800ddb11a..05d6153816c 100644
--- a/src/main/resources/bidder-config/yandex.yaml
+++ b/src/main/resources/bidder-config/yandex.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: yandex
       redirect:
         url: https://yandex.ru/an/mapuid/yandex/?ssp-id=10500&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&location={{redirect_url}}
-        support-cors: false
         uid-macro: '{YANDEXUID}'
diff --git a/src/main/resources/bidder-config/yieldlab.yaml b/src/main/resources/bidder-config/yieldlab.yaml
index 806d279bc26..1dc8a9f5e9d 100644
--- a/src/main/resources/bidder-config/yieldlab.yaml
+++ b/src/main/resources/bidder-config/yieldlab.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: yieldlab
       redirect:
         url: https://ad.yieldlab.net/mr?t=2&pid=9140838&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '%%YL_UID%%'
diff --git a/src/main/resources/bidder-config/yieldmo.yaml b/src/main/resources/bidder-config/yieldmo.yaml
index 84415ead13e..48b3db2bf3a 100644
--- a/src/main/resources/bidder-config/yieldmo.yaml
+++ b/src/main/resources/bidder-config/yieldmo.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: yieldmo
       redirect:
         url: https://ads.yieldmo.com/pbsync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&redirectUri={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/yieldone.yaml b/src/main/resources/bidder-config/yieldone.yaml
index f7cde55cc28..d65cc9e7543 100644
--- a/src/main/resources/bidder-config/yieldone.yaml
+++ b/src/main/resources/bidder-config/yieldone.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: yieldone
       redirect:
         url: https://y.one.impact-ad.jp/hbs_cs?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&redirectUri={{redirect_url}}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/zeroclickfraud.yaml b/src/main/resources/bidder-config/zeroclickfraud.yaml
index 6008db2b3e3..6751db3bc02 100644
--- a/src/main/resources/bidder-config/zeroclickfraud.yaml
+++ b/src/main/resources/bidder-config/zeroclickfraud.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: zeroclickfraud
       iframe:
         url: https://s.0cf.io/sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&r={{redirect_url}}
-        support-cors: false
         uid-macro: '${uid}'
diff --git a/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy b/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy
index 0ddb8dd7d10..a13646f01c4 100644
--- a/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy
+++ b/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy
@@ -8,7 +8,6 @@ class UserSyncInfo {
 
     String url
     Type type
-    Boolean supportCORS
 
     enum Type {
 
diff --git a/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy
index 1506e2e0a4d..9a48addc0df 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy
@@ -43,14 +43,12 @@ import static org.prebid.server.functional.util.SystemProperties.PBS_VERSION
 class AuctionSpec extends BaseSpec {
 
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
-    private static final Boolean CORS_SUPPORT = false
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
     private static final Integer DEFAULT_TIMEOUT = getRandomTimeout()
     private static final Integer MIN_BID_ID_LENGTH = 17
     private static final Integer DEFAULT_UUID_LENGTH = 36
     private static final Map<String, String> GENERIC_CONFIG = [
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     @Shared
     PrebidServerService prebidServerService = pbsServiceFactory.getService(PBS_CONFIG)
 
@@ -189,8 +187,7 @@ class AuctionSpec extends BaseSpec {
     def "PBS should populate buyeruid from uids cookie when buyeruids with appropriate bidder but without value present in request"() {
         given: "PBS config"
         def prebidServerService = pbsServiceFactory.getService(PBS_CONFIG
-                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL,
-                   "adapters.${GENERIC.value}.usersync.${REDIRECT.value}.support-cors": "false"])
+                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL])
 
         and: "Bid request with buyeruids"
         def bidRequest = BidRequest.defaultBidRequest.tap {
@@ -212,8 +209,7 @@ class AuctionSpec extends BaseSpec {
     def "PBS shouldn't populate buyeruid from uids cookie when buyeruids with appropriate bidder but without value present in request"() {
         given: "PBS config"
         def prebidServerService = pbsServiceFactory.getService(PBS_CONFIG
-                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL,
-                   "adapters.${GENERIC.value}.usersync.${REDIRECT.value}.support-cors": "false"])
+                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL])
 
         and: "Bid request with buyeruids"
         def bidRequest = BidRequest.defaultBidRequest.tap {
diff --git a/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy
index 29542fd8326..7e44373562e 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy
@@ -55,40 +55,32 @@ import static org.prebid.server.functional.util.privacy.TcfConsent.RUBICON_VENDO
 class CookieSyncSpec extends BaseSpec {
 
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
-    private static final boolean CORS_SUPPORT = false
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final String ALL_BIDDERS = "*"
     private static final Integer DEFAULT_PBS_BIDDERS_SIZE = 8
 
     private static final Map<String, String> GENERIC_CONFIG = [
             "adapters.${GENERIC.value}.usersync.redirect.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.redirect.support-cors": CORS_SUPPORT as String,
             "adapters.${GENERIC.value}.meta-info.vendor-id"           : GENERIC_VENDOR_ID as String]
     private static final Map<String, String> ACEEX_CONFIG = [
             "adapters.${ACEEX.value}.enabled"                       : "true",
             "adapters.${ACEEX.value}.usersync.cookie-family-name"   : ACEEX.value,
-            "adapters.${ACEEX.value}.usersync.redirect.url"         : "https://test.redirect.endpoint.com={{redirect_url}}",
-            "adapters.${ACEEX.value}.usersync.redirect.support-cors": CORS_SUPPORT as String]
+            "adapters.${ACEEX.value}.usersync.redirect.url"         : "https://test.redirect.endpoint.com={{redirect_url}}"]
     private static final Map<String, String> RUBICON_CONFIG = [
             "adapters.${RUBICON.value}.enabled"                       : "true",
             "adapters.${RUBICON.value}.meta-info.vendor-id"           : RUBICON_VENDOR_ID as String,
             "adapters.${RUBICON.value}.usersync.cookie-family-name"   : RUBICON.value,
             "adapters.${RUBICON.value}.usersync.redirect.url"         : "https://test.redirect.endpoint.com",
-            "adapters.${RUBICON.value}.usersync.redirect.support-cors": CORS_SUPPORT as String,
-            "adapters.${RUBICON.value}.usersync.iframe.url"           : "https://test.iframe.endpoint.com&redir={{redirect_url}}",
-            "adapters.${RUBICON.value}.usersync.iframe.support-cors"  : CORS_SUPPORT as String]
+            "adapters.${RUBICON.value}.usersync.iframe.url"           : "https://test.iframe.endpoint.com&redir={{redirect_url}}"]
     private static final Map<String, String> OPENX_CONFIG = [
             "adapters.${OPENX.value}.enabled"                       : "true",
             "adapters.${OPENX.value}.usersync.cookie-family-name"   : OPENX.value,
             "adapters.${OPENX.value}.usersync.redirect.url"         : USER_SYNC_URL,
-            "adapters.${OPENX.value}.usersync.redirect.support-cors": CORS_SUPPORT as String,
-            "adapters.${OPENX.value}.usersync.iframe.url"           : USER_SYNC_URL,
-            "adapters.${OPENX.value}.usersync.iframe.support-cors"  : CORS_SUPPORT as String]
+            "adapters.${OPENX.value}.usersync.iframe.url"           : USER_SYNC_URL]
     private static final Map<String, String> APPNEXUS_CONFIG = [
             "adapters.${APPNEXUS.value}.enabled"                       : "true",
             "adapters.${APPNEXUS.value}.usersync.cookie-family-name"   : APPNEXUS.value,
-            "adapters.${APPNEXUS.value}.usersync.redirect.url"         : "https://test.appnexus.redirect.com/getuid?{{redirect_url}}",
-            "adapters.${APPNEXUS.value}.usersync.redirect.support-cors": CORS_SUPPORT as String]
+            "adapters.${APPNEXUS.value}.usersync.redirect.url"         : "https://test.appnexus.redirect.com/getuid?{{redirect_url}}"]
     private static final Map<String, String> AAX_CONFIG = ["adapters.${AAX.value}.enabled": "true"]
     private static final Map<String, String> ACUITYADS_CONFIG = ["adapters.${ACUITYADS.value}.enabled": "true"]
     private static final Map<String, String> ADKERNEL_CONFIG = ["adapters.${ADKERNEL.value}.enabled": "true"]
@@ -501,7 +493,6 @@ class CookieSyncSpec extends BaseSpec {
         def bidderStatus = response.getBidderUserSync(GENERIC)
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert bidderStatus?.noCookie == true
     }
 
@@ -542,7 +533,6 @@ class CookieSyncSpec extends BaseSpec {
         def bidderStatus = response.getBidderUserSync(bidder)
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert bidderStatus?.noCookie == true
     }
 
@@ -593,7 +583,6 @@ class CookieSyncSpec extends BaseSpec {
         def configuredBidderStatus = response.getBidderUserSync(GENERIC)
         assert configuredBidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert configuredBidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert configuredBidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert configuredBidderStatus?.noCookie == true
     }
 
@@ -675,7 +664,6 @@ class CookieSyncSpec extends BaseSpec {
         def mainBidderStatus = response.getBidderUserSync(GENERIC)
         assert mainBidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert mainBidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert mainBidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert mainBidderStatus?.noCookie == true
     }
 
@@ -699,7 +687,6 @@ class CookieSyncSpec extends BaseSpec {
         response.bidderStatus.each {
             assert it.userSync?.url?.startsWith(USER_SYNC_URL)
             assert it.userSync?.type == USER_SYNC_TYPE
-            assert it.userSync?.supportCORS == CORS_SUPPORT
             assert it.noCookie == true
         }
     }
@@ -1626,7 +1613,6 @@ class CookieSyncSpec extends BaseSpec {
         def bidderStatus = response?.bidderStatus?.userSync
         assert bidderStatus?.url
         assert bidderStatus?.type
-        assert bidderStatus?.supportCORS?.every(it -> it == CORS_SUPPORT)
     }
 
     def "PBS cookie sync request shouldn't return sync url when active uids cookie is present for bidder"() {
diff --git a/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy
index 4a0229122b6..9a293b72997 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy
@@ -194,7 +194,6 @@ class HttpSettingsSpec extends BaseSpec {
         given: "Pbs config with adapters.generic.usersync.redirect.*"
         def pbsConfig = PbsConfig.httpSettingsConfig +
                 ["adapters.generic.usersync.redirect.url"            : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                 "adapters.generic.usersync.redirect.support-cors"   : "false",
                  "adapters.generic.usersync.redirect.format-override": "blank"]
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
@@ -230,7 +229,6 @@ class HttpSettingsSpec extends BaseSpec {
                 ['settings.http.endpoint': "${networkServiceContainer.rootUri}${HttpSettings.rfcEndpoint}".toString(),
                  'settings.http.rfc3986-compatible': 'true',
                  'adapters.generic.usersync.redirect.url'            : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                 'adapters.generic.usersync.redirect.support-cors'   : 'false',
                  'adapters.generic.usersync.redirect.format-override': 'blank']
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
diff --git a/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy
index 7e9eff9ebd3..6e035c0b44f 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy
@@ -35,7 +35,6 @@ class SetUidSpec extends BaseSpec {
     private static final Integer MAX_NUMBER_OF_UID_COOKIES = 30
     private static final Integer UPDATED_EXPIRE_DAYS = 14
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
-    private static final boolean CORS_SUPPORT = false
     private static final Integer RANDOM_EXPIRE_DAY = PBSUtils.getRandomNumber(1, 10)
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final Map<String, String> PBS_CONFIG =
@@ -46,8 +45,7 @@ class SetUidSpec extends BaseSpec {
              "adapters.${OPENX.value}.usersync.cookie-family-name"                    : OPENX.value,
              "adapters.${APPNEXUS.value}.enabled"                                     : "true",
              "adapters.${APPNEXUS.value}.usersync.cookie-family-name"                 : APPNEXUS.value,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     private static final Map<String, String> UID_COOKIES_CONFIG = ['setuid.number-of-uid-cookies': MAX_NUMBER_OF_UID_COOKIES.toString()]
     private static final Map<String, String> GENERIC_ALIAS_CONFIG = ["adapters.generic.aliases.alias.enabled" : "true",
                                                                      "adapters.generic.aliases.alias.endpoint": "$networkServiceContainer.rootUri/auction".toString()]
diff --git a/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy
index b4111e551fb..6c3ab7e3869 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy
@@ -12,14 +12,12 @@ import static org.prebid.server.functional.testcontainers.Dependencies.networkSe
 
 class UserSyncSpec extends BaseSpec {
 
-    private static final Map<String, String> GENERIC_USERSYNC_CONFIG = ["adapters.${GENERIC.value}.usersync.${IFRAME.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                                                                        "adapters.${GENERIC.value}.usersync.${IFRAME.value}.support-cors": "false"]
+    private static final Map<String, String> GENERIC_USERSYNC_CONFIG = ["adapters.${GENERIC.value}.usersync.${IFRAME.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString()]
 
     def "PBS should return usersync url with '#formatParam' format parameter for #userSyncFormat when format-override absent"() {
         given: "Pbs config with usersync.#userSyncFormat"
         def prebidServerService = pbsServiceFactory.getService(
-                ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                 "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false"])
+                ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString()])
 
         and: "Default CookieSyncRequest"
         def cookieSyncRequest = CookieSyncRequest.defaultCookieSyncRequest
@@ -42,7 +40,6 @@ class UserSyncSpec extends BaseSpec {
         given: "Pbs config with usersync.#userSyncFormat and iframe.format-override: #formatOverride"
         def prebidServerService = pbsServiceFactory.getService(
                 ["adapters.generic.usersync.${userSyncFormat.value}.url"            : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                 "adapters.generic.usersync.${userSyncFormat.value}.support-cors"   : "false",
                  "adapters.generic.usersync.${userSyncFormat.value}.format-override": formatOverride.value])
 
         and: "Default CookieSyncRequest"
@@ -68,7 +65,6 @@ class UserSyncSpec extends BaseSpec {
         given: "Pbs config with usersync.#userSyncFormat.url"
         def prebidServerService = pbsServiceFactory.getService(
                 ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                 "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false",
                  "adapters.generic.usersync.${userSyncFormat.value}.uid-macro"   : null])
 
         and: "Default CookieSyncRequest"
diff --git a/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy
index d27d44e0fc0..a5dd9359ced 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy
@@ -85,7 +85,6 @@ abstract class RuleEngineBaseSpec extends ModuleBaseSpec {
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final Map<String, String> GENERIC_CONFIG = [
             "adapters.${GENERIC.value}.usersync.redirect.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.redirect.support-cors": false as String,
             "adapters.${GENERIC.value}.meta-info.vendor-id"           : GENERIC_VENDOR_ID as String]
     protected static final PrebidServerService pbsServiceWithRulesEngineModule = pbsServiceFactory.getService(GENERIC_CONFIG +
             getRulesEngineSettings() + AMX_CONFIG + OPENX_CONFIG + OPENX_ALIAS_CONFIG + ['datacenter-region': CONFIG_DATA_CENTER] +
diff --git a/src/test/groovy/org/prebid/server/functional/tests/privacy/GdprSetUidSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/privacy/GdprSetUidSpec.groovy
index df46f493775..47beee57208 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/privacy/GdprSetUidSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/privacy/GdprSetUidSpec.groovy
@@ -29,13 +29,11 @@ import static org.prebid.server.functional.util.privacy.TcfConsent.PurposeId.DEV
 
 class GdprSetUidSpec extends PrivacyBaseSpec {
 
-    private static final boolean CORS_SUPPORT = false
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
     private static final Map<String, String> VENDOR_GENERIC_PBS_CONFIG = GENERIC_VENDOR_CONFIG +
             ["gdpr.purposes.p1.enforce-purpose"                                       : NO.value,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     private static final String TCF_ERROR_MESSAGE = "The gdpr_consent param prevents cookies from being saved"
     private static final int UNAVAILABLE_FOR_LEGAL_REASONS_CODE = 451
 
diff --git a/src/test/groovy/org/prebid/server/functional/tests/privacy/GppCookieSyncSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/privacy/GppCookieSyncSpec.groovy
index 045dd33a784..74f5a2bdb1c 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/privacy/GppCookieSyncSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/privacy/GppCookieSyncSpec.groovy
@@ -36,21 +36,18 @@ import static org.prebid.server.functional.util.privacy.TcfConsent.PurposeId.DEV
 class GppCookieSyncSpec extends BaseSpec {
 
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
-    private static final boolean CORS_SUPPORT = false
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final GppSectionId FIRST_GPP_SECTION = PBSUtils.getRandomEnum(GppSectionId.class)
     private static final GppSectionId SECOND_GPP_SECTION = PBSUtils.getRandomEnum(GppSectionId.class, [FIRST_GPP_SECTION])
 
     private static final Map<String, String> GENERIC_CONFIG = [
             "adapters.${GENERIC.value}.meta-info.vendor-id"                          : GENERIC_VENDOR_ID as String,
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     private static final Map<String, String> GENERIC_WITH_SKIP_CONFIG = [
             "adapters.${GENERIC.value}.meta-info.vendor-id"                          : GENERIC_VENDOR_ID as String,
             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
             "adapters.${GENERIC.value}.usersync.skipwhen.gdpr"                       : 'true',
-            "adapters.${GENERIC.value}.usersync.skipwhen.gpp_sid"                    : "${FIRST_GPP_SECTION.value}, ${SECOND_GPP_SECTION.value}".toString(),
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+            "adapters.${GENERIC.value}.usersync.skipwhen.gpp_sid"                    : "${FIRST_GPP_SECTION.value}, ${SECOND_GPP_SECTION.value}".toString()]
 
     private static PrebidServerService prebidServerService = pbsServiceFactory.getService(GENERIC_CONFIG)
     private static PrebidServerService prebidServerServiceWithSkipConfig = pbsServiceFactory.getService(GENERIC_WITH_SKIP_CONFIG + GENERIC_ALIAS_CONFIG)
@@ -100,7 +97,6 @@ class GppCookieSyncSpec extends BaseSpec {
         assert bidderStatus?.noCookie == true
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
     }
 
     def "PBS cookie sync request should respond with a warning when gpp_sid contains 2 and gdpr is 0"() {
@@ -123,7 +119,6 @@ class GppCookieSyncSpec extends BaseSpec {
         assert bidderStatus?.noCookie == true
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
     }
 
     def "PBS cookie sync request should respond with a warning when gpp_sid doesn't contain 2 and gdpr is 1"() {
@@ -166,7 +161,6 @@ class GppCookieSyncSpec extends BaseSpec {
         assert bidderStatus?.noCookie == true
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
     }
 
     def "PBS cookie sync request should respond with an error when gpp_sid is invalid"() {
@@ -229,8 +223,7 @@ class GppCookieSyncSpec extends BaseSpec {
 
     def "PBS should return empty gpp and gppSid in usersync url when gpp and gppSid is not present in request"() {
         given: "Pbs config with usersync.#userSyncFormat.url"
-        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                         "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false"]
+        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString()]
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
         and: "Default CookieSyncRequest without gpp and gppSid"
@@ -256,8 +249,7 @@ class GppCookieSyncSpec extends BaseSpec {
 
     def "PBS should populate gpp and gppSid in usersync url when gpp and gppSid is present in request"() {
         given: "Pbs config with usersync.#userSyncFormat.url"
-        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString(),
-                         "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false"]
+        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={{redirect_url}}".toString()]
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
         and: "Default CookieSyncRequest with gpp and gppSid"
@@ -411,8 +403,7 @@ class GppCookieSyncSpec extends BaseSpec {
         def pbsConfig = [
                 "adapters.${GENERIC.value}.meta-info.vendor-id"                          : GENERIC_VENDOR_ID as String,
                 "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-                "adapters.${GENERIC.value}.usersync.skipwhen.gdpr"                       : 'false',
-                "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+                "adapters.${GENERIC.value}.usersync.skipwhen.gdpr"                       : 'false']
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
         and: "Default CookieSyncRequest with gdpr config"
diff --git a/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy
index 7d8ed79de7d..7fbdf9b5213 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy
@@ -85,7 +85,6 @@ abstract class PrivacyBaseSpec extends BaseSpec {
     private static final int GEO_PRECISION = 2
 
     protected static final Map<String, String> GENERIC_CONFIG = ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync".toString(),
-                                                                 "adapters.${GENERIC.value}.usersync.${REDIRECT.value}.support-cors": false.toString(),
                                                                  "adapters.${GENERIC.value}.ortb-version"                           : "2.6"]
     private static final Map<String, String> OPENX_CONFIG = ["adaptrs.${OPENX.value}.enabled"                     : "true",
                                                              "adapters.${OPENX.value}.usersync.cookie-family-name": OPENX.value,
diff --git a/src/test/java/org/prebid/server/bidder/UsersyncInfoBuilderTest.java b/src/test/java/org/prebid/server/bidder/UsersyncInfoBuilderTest.java
index d6357c17e2d..961c903d436 100644
--- a/src/test/java/org/prebid/server/bidder/UsersyncInfoBuilderTest.java
+++ b/src/test/java/org/prebid/server/bidder/UsersyncInfoBuilderTest.java
@@ -168,7 +168,6 @@ private static UsersyncMethod createUsersyncMethod(String usersyncUrl, String re
                 .type(UsersyncMethodType.REDIRECT)
                 .usersyncUrl(usersyncUrl)
                 .redirectUrl(redirectUrl)
-                .supportCORS(false)
                 .build();
     }
 }
diff --git a/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java b/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java
index b129a075dce..52a602356bc 100644
--- a/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java
+++ b/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java
@@ -337,7 +337,6 @@ private UsersyncMethod iframeMethod(String url) {
                 .type(UsersyncMethodType.IFRAME)
                 .usersyncUrl(url)
                 .redirectUrl(null)
-                .supportCORS(false)
                 .build();
     }
 
@@ -346,7 +345,6 @@ private UsersyncMethod redirectMethod(String url) {
                 .type(UsersyncMethodType.REDIRECT)
                 .usersyncUrl(url)
                 .redirectUrl(null)
-                .supportCORS(false)
                 .build();
     }
 }
diff --git a/src/test/java/org/prebid/server/cookie/CookieSyncServiceTest.java b/src/test/java/org/prebid/server/cookie/CookieSyncServiceTest.java
index bafc6a11d16..e668f52f61e 100644
--- a/src/test/java/org/prebid/server/cookie/CookieSyncServiceTest.java
+++ b/src/test/java/org/prebid/server/cookie/CookieSyncServiceTest.java
@@ -1029,7 +1029,7 @@ public void prepareResponseShouldReturnWarningForAliasesSyncedAsRootCookieFamily
         final BidderUsersyncStatus validStatus = BidderUsersyncStatus.builder()
                 .bidder("root-cookie-family")
                 .noCookie(true)
-                .usersync(UsersyncInfo.of("https://alias-usersync-url.com", UsersyncMethodType.IFRAME, false))
+                .usersync(UsersyncInfo.of("https://alias-usersync-url.com", UsersyncMethodType.IFRAME))
                 .build();
 
         assertThat(result.getBidderStatus()).containsExactlyInAnyOrder(validStatus, warningStatus);
@@ -1056,7 +1056,7 @@ public void prepareResponseShouldNotReturnWarningForAliasesSyncedAsAliasCookieFa
         final BidderUsersyncStatus status = BidderUsersyncStatus.builder()
                 .bidder("alias-cookie-family")
                 .noCookie(true)
-                .usersync(UsersyncInfo.of("https://alias-usersync-url.com", UsersyncMethodType.IFRAME, false))
+                .usersync(UsersyncInfo.of("https://alias-usersync-url.com", UsersyncMethodType.IFRAME))
                 .build();
 
         assertThat(result.getBidderStatus()).containsExactly(status);
@@ -1084,7 +1084,7 @@ public void prepareResponseShouldReturnErrorForBiddersThatWereNotIncludedInRespo
         final BidderUsersyncStatus validStatus = BidderUsersyncStatus.builder()
                 .bidder("bidder1-cookie-family")
                 .noCookie(true)
-                .usersync(UsersyncInfo.of("https://bidder1-usersync-url.com", UsersyncMethodType.IFRAME, false))
+                .usersync(UsersyncInfo.of("https://bidder1-usersync-url.com", UsersyncMethodType.IFRAME))
                 .build();
 
         assertThat(result.getBidderStatus()).containsExactlyInAnyOrder(validStatus, warningStatus);
@@ -1122,7 +1122,7 @@ public void prepareResponseShouldReturnCustomUsersyncUrlForHostCookieSync() {
         final BidderUsersyncStatus status = BidderUsersyncStatus.builder()
                 .noCookie(true)
                 .bidder("host-bidder-cookie-family")
-                .usersync(UsersyncInfo.of(expectedUrl, UsersyncMethodType.IFRAME, false))
+                .usersync(UsersyncInfo.of(expectedUrl, UsersyncMethodType.IFRAME))
                 .build();
 
         assertThat(result.getBidderStatus()).containsExactly(status);
@@ -1160,7 +1160,7 @@ public void prepareResponseShouldReturnResponseWithWarningsIfNotEmpty() {
         final BidderUsersyncStatus status = BidderUsersyncStatus.builder()
                 .noCookie(true)
                 .bidder("host-bidder-cookie-family")
-                .usersync(UsersyncInfo.of(expectedUrl, UsersyncMethodType.IFRAME, false))
+                .usersync(UsersyncInfo.of(expectedUrl, UsersyncMethodType.IFRAME))
                 .build();
 
         assertThat(result.getBidderStatus()).containsExactly(status);
@@ -1199,7 +1199,7 @@ public void prepareResponseShouldReturnResponseWithoutWarningsIfEmpty() {
         final BidderUsersyncStatus status = BidderUsersyncStatus.builder()
                 .noCookie(true)
                 .bidder("host-bidder-cookie-family")
-                .usersync(UsersyncInfo.of(expectedUrl, UsersyncMethodType.IFRAME, false))
+                .usersync(UsersyncInfo.of(expectedUrl, UsersyncMethodType.IFRAME))
                 .build();
 
         assertThat(result.getBidderStatus()).containsExactly(status);
diff --git a/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java b/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java
index ed88f7f6fdd..1a6c5dfd47d 100644
--- a/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java
+++ b/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java
@@ -897,10 +897,10 @@ private static UidsCookie emptyUidsCookie() {
     }
 
     private static UsersyncMethod iframeMethod() {
-        return UsersyncMethod.builder().type(UsersyncMethodType.IFRAME).supportCORS(false).build();
+        return UsersyncMethod.builder().type(UsersyncMethodType.IFRAME).build();
     }
 
     private static UsersyncMethod redirectMethod() {
-        return UsersyncMethod.builder().type(UsersyncMethodType.REDIRECT).supportCORS(false).build();
+        return UsersyncMethod.builder().type(UsersyncMethodType.REDIRECT).build();
     }
 }
diff --git a/src/test/java/org/prebid/server/it/ApplicationTest.java b/src/test/java/org/prebid/server/it/ApplicationTest.java
index 3a3710c6e6e..ad0d3dd3087 100644
--- a/src/test/java/org/prebid/server/it/ApplicationTest.java
+++ b/src/test/java/org/prebid/server/it/ApplicationTest.java
@@ -326,7 +326,7 @@ public void cookieSyncShouldReturnBidderStatusWithExpectedUsersyncInfo() {
                                         + "&gpp_sid="
                                         + "&f=i"
                                         + "&uid=host-cookie-uid",
-                                UsersyncMethodType.REDIRECT, false))
+                                UsersyncMethodType.REDIRECT))
                         .build(),
                 BidderUsersyncStatus.builder()
                         .bidder(APPNEXUS_COOKIE_FAMILY)
@@ -339,7 +339,7 @@ public void cookieSyncShouldReturnBidderStatusWithExpectedUsersyncInfo() {
                                         + "%26gpp_sid%3D"
                                         + "%26f%3Db"
                                         + "%26uid%3D%24UID",
-                                UsersyncMethodType.IFRAME, false))
+                                UsersyncMethodType.IFRAME))
                         .build());
     }
 
diff --git a/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreatorTest.java b/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreatorTest.java
index 7337d5d8b1c..a2b1ea3f6bb 100644
--- a/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreatorTest.java
+++ b/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerCreatorTest.java
@@ -22,7 +22,6 @@ public void createShouldReturnUsersyncerWithConcatenatedExternalAndRedirectUrl()
         final UsersyncMethodConfigurationProperties methodConfig = new UsersyncMethodConfigurationProperties();
         methodConfig.setUrl("//redirect-url?uid=");
         methodConfig.setUidMacro("uid-macro");
-        methodConfig.setSupportCors(false);
 
         config.setEnabled(true);
         config.setCookieFamilyName("rubicon");
@@ -50,7 +49,6 @@ public void createShouldValidateExternalUrl() {
         final UsersyncMethodConfigurationProperties methodConfig = new UsersyncMethodConfigurationProperties();
         methodConfig.setUrl("//usersync-url");
         methodConfig.setUidMacro("not-valid-macro");
-        methodConfig.setSupportCors(true);
 
         config.setEnabled(true);
         config.setRedirect(methodConfig);
@@ -70,12 +68,10 @@ public void createShouldReturnUsersyncerWithPrimaryAndSecondaryMethods() {
         final UsersyncMethodConfigurationProperties iframeConfig = new UsersyncMethodConfigurationProperties();
         iframeConfig.setUrl("//usersync-url-iframe?uid=");
         iframeConfig.setUidMacro("uid-macro-iframe");
-        iframeConfig.setSupportCors(true);
 
         final UsersyncMethodConfigurationProperties redirectConfig = new UsersyncMethodConfigurationProperties();
         redirectConfig.setUrl("//usersync-url-redirect?u=");
         redirectConfig.setUidMacro("uid-macro-redirect");
-        redirectConfig.setSupportCors(false);
 
         config.setEnabled(true);
         config.setIframe(iframeConfig);
@@ -98,7 +94,6 @@ public void createShouldReturnUsersyncerWithPrimaryAndSecondaryMethods() {
                         &gpp_sid={{gpp_sid}}\
                         &uid=uid-macro-iframe\
                         """)
-                .supportCORS(true)
                 .build();
 
         final UsersyncMethod expectedRedirectMethod = UsersyncMethod.builder()
@@ -113,7 +108,6 @@ public void createShouldReturnUsersyncerWithPrimaryAndSecondaryMethods() {
                         &gpp_sid={{gpp_sid}}\
                         &uid=uid-macro-redirect\
                         """)
-                .supportCORS(false)
                 .build();
 
         assertThat(result).isEqualTo(
@@ -126,7 +120,6 @@ public void createShouldTolerateMissingUid() {
         final UsersyncConfigurationProperties config = new UsersyncConfigurationProperties();
         final UsersyncMethodConfigurationProperties methodConfig = new UsersyncMethodConfigurationProperties();
         methodConfig.setUrl("//redirect-url?uid=");
-        methodConfig.setSupportCors(false);
 
         config.setEnabled(true);
         config.setCookieFamilyName("rubicon");
diff --git a/src/test/resources/org/prebid/server/it/test-application.properties b/src/test/resources/org/prebid/server/it/test-application.properties
index ffa0e527254..91dd5477de2 100644
--- a/src/test/resources/org/prebid/server/it/test-application.properties
+++ b/src/test/resources/org/prebid/server/it/test-application.properties
@@ -132,7 +132,6 @@ adapters.appnexus.enabled=true
 adapters.appnexus.endpoint=http://localhost:8090/appnexus-exchange
 adapters.appnexus.usersync.iframe.url=//usersync-url/getuid?{{redirect_url}}
 adapters.appnexus.usersync.iframe.uid-macro=$UID
-adapters.appnexus.usersync.iframe.support-cors=false
 adapters.appnexus.aliases.mediafuse.enabled=true
 adapters.appnexus.aliases.mediafuse.endpoint=http://localhost:8090/mediafuse-exchange
 adapters.appush.enabled=true
@@ -488,7 +487,6 @@ adapters.rubicon.XAPI.Username=rubicon_user
 adapters.rubicon.XAPI.Password=rubicon_password
 adapters.rubicon.usersync.redirect.url=http://localhost:8090/rubicon-usersync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}
 adapters.rubicon.usersync.redirect.uid-macro=rubicon-macro
-adapters.rubicon.usersync.redirect.support-cors=false
 adapters.salunamedia.enabled=true
 adapters.salunamedia.endpoint=http://localhost:8090/salunamedia-exchange
 adapters.screencore.enabled=true