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AG-43745 Add urltransform supported version for browser-extension #875

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AG-43745 Add urltransform supported version for browser-extension #875

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17 changes: 15 additions & 2 deletions docs/general/ad-filtering/create-own-filters.md
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Expand Up @@ -1425,7 +1425,7 @@ These modifiers are able to completely change the behavior of basic rules.
| [$removeheader](#removeheader-modifier) | ✅ | ✅ [*[7]](#removeheader-modifier-limitations) | ✅ [*[7]](#removeheader-modifier-limitations) | ✅ [*[7]](#removeheader-modifier-limitations) | ❌ | ❌ | ❌ |
| [$removeparam](#removeparam-modifier) | ✅ | ✅ | ✅ [*[6]](#removeparam-modifier-limitations) | ✅ | ❌ | ❌ | ❌ |
| [$replace](#replace-modifier) | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ |
| [$urltransform](#urltransform-modifier) | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| [$urltransform](#urltransform-modifier) | ✅ | ✅ | ✅ [*[8]](#urltransform-modifier-limitations) | ✅ | ❌ | ❌ | ❌ |
| [$reason](#reason-modifier) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ |
| [noop](#noop-modifier) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ |
| [$empty 👎](#empty-modifier "deprecated") | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ | ❌ |
Expand Down Expand Up @@ -2953,7 +2953,7 @@ AdGuard products that use a [CoreLibs] version older than 1.20 only support a si

:::info Compatibility

This section only applies to AdGuard for Windows, AdGuard for Mac, AdGuard for Android, and AdGuard for Linux with [CoreLibs] v1.17 or later.
This section only applies to AdGuard for Windows, AdGuard for Mac, AdGuard for Android, and AdGuard for Linux with [CoreLibs] v1.17 or later, and to [AdGuard Browser Extension][ext-chr] v5.5 or later.

:::

Expand Down Expand Up @@ -3042,6 +3042,19 @@ Rules with the `$urltransform` modifier are supported by AdGuard for Windows, Ad

`$urltransform` rules with [content-type modifiers](#content-type-modifiers) are supported starting from [CoreLibs] v1.19 or later. In earlier versions, content-type modifiers were not allowed with `$urltransform`.

Rules with the `$urltransform` modifier and [content-type modifiers](#content-type-modifiers) are also supported by [AdGuard Browser Extension][ext-chr] v5.5 or later, and by [AdGuard for Chrome MV3][ext-mv3] with [limitations](#urltransform-modifier-limitations).

:::

##### `$urltransform` modifier limitations {#urltransform-modifier-limitations}

:::caution Limitations

In [AdGuard for Chrome MV3][ext-mv3], the `$urltransform` modifier has the following limitations:

1. **No decode stages** — pipeline transforms containing `b64` (Base64 decode) or `pct` (percent-decode) stages are not supported and will be discarded.
2. **No global replacement** — only the **first match** is replaced. The `/g` (global) flag is ignored. This is usually not an issue for full-URL transforms anchored with `^`, but path-only patterns that rely on replacing all occurrences will only replace the first one.
3. **Single redirect per request** — when multiple `$urltransform` rules match the same request, only the highest-priority one takes effect. In CoreLibs, all matching rules are applied sequentially.
:::

#### **`$reason`** {#reason-modifier}
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