CAPTIONS POC

To test 6 different techniques:

1. track element in HTML with vtt src [commented in the code]

2. track element in HTML with ttml src [commented in the code]

3. track element created and added from JS with vtt [button VTT]

4. track element created and added from JS with ttml (fetch the content and then use a blob) [button TTML]

5. track element created and added from JS with vtt (fetch the content and then use a blob) [button VTT BLOB]

6. track element created and added from JS with ttml converted on the fly in vtt (fetch the content, convert ttml to vtt, and then use a blob) [button TTML2VTT]

Chrome browser (tested on v134):

1. OK
2. NOT OK
3. OK
4. NOT OK
5. OK
6. OK

Try online

DEMO GITHUB.IO