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[DOCS-13661] Document triple curly brace syntax for raw/unencoded output #35302

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[DOCS-13661] Document triple curly brace syntax for raw/unencoded output #35302

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15 changes: 14 additions & 1 deletion content/en/monitors/notify/variables.md
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Expand Up @@ -475,7 +475,20 @@ For instance, assume your composite monitor has a sub-monitor `a`, which is a Lo

### Character escape

Variable content is escaped by default. To prevent content such as JSON or code from being escaped, use triple braces instead of double braces, for example: `{{{event.text}}}`.
Variable content is HTML-encoded by default. For example, special characters like `&` and `'` are converted to `&` and `'` in the rendered output. To output raw, unencoded content, use triple curly braces instead of double curly braces:
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@maycmlee maycmlee Mar 16, 2026

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Does this mean if you put this in the notification message template:

This & that

In the actual notification received, you'd see:

This & that

If so, maybe this could make it clearer:

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Variable content is HTML-encoded by default. For example, special characters like `&` and `'` are converted to `&` and `'` in the rendered output. To output raw, unencoded content, use triple curly braces instead of double curly braces:
Variable content is HTML-encoded by default. For example, if a notification message contains special characters like `&` and `'`, the characters are converted to `&` and `'` in the rendered output. To output raw, unencoded content, use triple curly braces instead of double curly braces:


| Syntax | Output |
|--------|--------|
| `{{variable}}` | HTML-encoded (default) |
| `{{{variable}}}` | Raw, unencoded |

For example, to render the check message without HTML encoding:

```text
{{{check_message}}}
```

This is particularly relevant when `{{check_message}}` contains auto-generated URLs with query parameters (for example, on HTTP Check monitors). The `&` characters in those URLs are HTML-encoded by default, which can break clickable links in notifications. Use `{{{check_message}}}` to preserve the URLs as-is.

## Template variables

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