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Updated "removeparam".

garry-ut99 2024-08-21 09:30:21 +00:00
parent d2e212fa1e
commit 99f184eac1
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8
Static-filter-syntax.md

@ -884,7 +884,7 @@ To remove query parameters from the URL of network requests -- see also [AG's `r
`removeparam` is a modifier option (like `csp`) in that it does not cause a network request to be blocked but rather becomes modified before being emitted.
`removeparam` must be assigned a value. This value will determine which exact parameter from a query string will get removed:
`removeparam` can be assigned a value. This value will determine which exact parameter from a query string will get removed:
```adb
*$removeparam=utm_source
@ -900,6 +900,12 @@ The value assigned to `removeparam` can be a literal regular expression, in whic
The above filter will remove all query parameters whose name starts with `utm_`, regardless of their value. When using a literal regular expression, it gets tested against each query parameter name-value pair assembled into a single string as `name=value`.
If no values are assigned, all query parameters on a given site will be removed:
```adb
||example.org^$removeparam
```
Poorly crafted `removeparam` filters can have harmful effects on performance. Experienced filter authors need to understand how to create optimal filters.
Cosmetically added params cannot be removed via `removeparam` (see related comment: [760#issuecomment-724703650](https://github.com/uBlockOrigin/uBlock-issues/issues/760#issuecomment-724703650) and invalid issues: [#1704](https://github.com/uBlockOrigin/uBlock-issues/issues/1704), [#1767](https://github.com/uBlockOrigin/uBlock-issues/issues/1767), [#1951](https://github.com/uBlockOrigin/uBlock-issues/issues/1951), [#2498](https://github.com/uBlockOrigin/uBlock-issues/issues/2498))