[Feature Request] $removeheader

[mtxadmin]

Prerequisites

• I verified that this is not a filter issue (MUST be reported at filter issue tracker)
• This is not a support issue or a question
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
• The issue is not present after wholly disabling uBlock Origin ("uBO") in the browser
• I checked the documentation to understand that the issue I report is not a normal behavior

I tried to reproduce the issue when...

• uBO is the only extension
• uBO with default lists/settings
• using a new, unmodified browser profile

Description

Is it possible to implement $removeheader parameter?

https://kb.adguard.com/en/general/how-to-create-your-own-ad-filters#removeheader-modifier

Related issues, discussions and docs:

• Spoof or block HTTP referral header #1663
• Block sending Referrer information gorhill/uBlock#3604
• 1plus1.video uAssets#8542
• https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#header (experimental)
• https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#response-header-filtering (seems to be new $queryprune -> $removeparam ? And there are only four headers can be removed)

A specific URL where the issue occurs

Steps to Reproduce

Expected behavior

HTTP headers removed
(or even replaced?)

Actual behavior

HTTP headers stay as is

uBlock Origin version

Browser name and version

Operating System and version

[krystian3w]

https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#response-header-filtering (seems to be new $queryprune -> $removeparam ? And there are only four headers can be removed)

No, response header was rare used without(/ not as) removeparam and should still works (so no removed form uBo arsenal):

• https://github.com/uBlockOrigin/uAssets/blob/aad4b9bce0dc0a9505176b65d92ba371905dad82/filters/filters-2021.txt#L1742-L1743, page look as dead.

• https://github.com/uBlockOrigin/uAssets/blob/aad4b9bce0dc0a9505176b65d92ba371905dad82/filters/filters-2021.txt#L4237-L4238 = imo no possible fix with "removeparam" (server side infection in 2021), for now page are dead (maybe due lack of employees).

• https://github.com/uBlockOrigin/uAssets/blob/aad4b9bce0dc0a9505176b65d92ba371905dad82/filters/filters-2021.txt#L4360-L4361 = imo no possible fix with "removeparam" (server side infection in 2021), maybe server was cured from malware, domain still work.

• NSFW https://github.com/uBlockOrigin/uAssets/blob/f82674c1e278cd262018cd7f7d99736da7798368/filters/filters-2022.txt#L3734-L3735 ads/placeholders

Maybe uAssets are open to add needed new ^responseheader after correct report and no possible fix problem with other way (block page by $doc or $all maybe is last choice e.g. too many malware on server for problematic pages).

[gwarser]

What is YOUR issue, and how it can be reproduced?

[HardenedSteel]

why this issue is closed? the issue is ublock origin doesn't have $removeheader