HTML filtering not working on codingdeft.com

[stephenhawk8054]

Prerequisites

• I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
• This is not a support issue or a question. For support, questions, or help, visit /r/uBlockOrigin.
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
• The issue is not present after disabling uBO in the browser.
• I checked the documentation to understand that the issue I am reporting is not normal behavior.

I tried to reproduce the issue when...

• uBO is the only extension.
• uBO uses default lists and settings.
• using a new, unmodified browser profile.

Description

When I use

codingdeft.com##^script

in Firefox, it does not remove the inline script in the HTML source code.

---

Actually I cannot remove any tag in the source code using HTML filtering on this site.

A specific URL where the issue occurs.

https://www.codingdeft.com/posts/typescript-convert-enum-to-array/

Steps to Reproduce

1. Add codingdeft.com##^script
2. Go to https://www.codingdeft.com/posts/typescript-convert-enum-to-array/
3. Check the source code in view-source:https://www.codingdeft.com/posts/typescript-convert-enum-to-array/

Expected behavior

Inline scripts are removed

Actual behavior

Inline scripts are not removed

uBO version

1.49.2

Browser name and version

Firefox 113.0.1

Operating System and version

Windows 10

[gwarser]

Is this because page explicitly specifies content-disposition: inline?

        }
        // https://bugzilla.mozilla.org/show_bug.cgi?id=1426789
        if ( headerValueFromName('content-disposition', headers) ) { return; }

        const stream = request.stream =
            browser.webRequest.filterResponseData(extras.requestId);

---

It is. I'm 7 minutes too late.

[stephenhawk8054]

Somehow HTML filtering does not work on this link: https://www.elahmad.com/tv/radiant_player.php?id=aljazeer_ar1

Can anyone else reproduce?

[peace2000]

I can. E.g. this doesn't remove anything:

elahmad.com##^[content]

But works on a different page:
iltalehti.fi##^[content]

[uBlock-user]

Something to do with charset being not mentioned ?

gorhill/uBlock@a3a80e3#diff-35c32f641b370cba4a5f06018c904c27241756164dfd317fa7c5698aec08c448R855

if ( charset === undefined ) { return; }

Side-note: @stephenhawk8054 for anti-adb --

elahmad.com##+js(no-fetch-if, method:HEAD)
elahmad.com##+js(no-xhr-if, method:HEAD)

or
*$xhr,method=head,3p,redirect-rule=nooptext,domain=elahmad.com

[mapx-]

at least in chrome => elahmad.com##+js(rmnt, script, fetch)

does it work for you for FF ?

[uBlock-user]

does it work for you for FF ?

No, likely due to blob: urls beings executed at late time.

[gorhill]

likely due to blob: urls beings executed

rmnt scriptlet is not injected as blob:, it's injected directly as a content script. blob: is for page script.

[uBlock-user]

it's injected directly as a content script.

So why it is failing in FF then ?

[gorhill]

Still possible to have race condition. Use log, 1 to find out how many nodes were found already in the DOM when the scriptlet execution started.

[uBlock-user]

Anyway, is the issue reported in #2656 (comment) related to lack of charset mention in Content-Type response header ?

[gorhill]

I need to confirm, I can't do this right now, later today maybe.

[gorhill]

When uBO doesn't detect a charset in response headers, it falls back to extracting a charset from the DOM. In the current case, the extracted charset is windows-1256, which is not supported in uBO.

[uBlock-user]

I see, well the line I pulled out, suggested a bail-out situation like before.

[stephenhawk8054]

Can anyone use HTML filtering on this site: https://qtoptens.com/ ?

[peace2000]

I can. What are you trying to remove?

[stephenhawk8054]

I was trying to remove admiral scripts inside while disabling current admiral domain blocking:

||muteknife.com^$badfilter
qtoptens.com##^script:has-text(engaged)

It works at first time for me, but when refreshing without bypassing cache (F5) a few times, it doesn't remove the script any more.

---

I figured out the cause, it's due to the service workers. When unregistering the service workers and use ||qtoptens.com^$csp=worker-src 'none', it works normally even when refreshing by F5.

[stephenhawk8054]

@gorhill Sorry, looks like HTML filtering is not working on https://missyusa.com/mainpage/content/index.asp. I think it's because this site is using charset=euc-kr ?

The source looks like this

<!DOCTYPE html>

<meta http-equiv="content-type" content="text/html; charset=euc-kr">

<html>
<head>

[gorhill]

I think it's because this site is using charset=euc-kr ?

Yes, that is not something uBO can handle. At 0.1% usage, not something I would work on -- I already declined work for Shift JIS (can't find issue anymore in tracker).

[garry-ut99]

stephenhawk8054 : looks like HTML filtering is not working. I think it's because this site is using charset=euc-kr ?

Like already mentioned in Wiki: https://github.com/uBlockOrigin/uBlock-issues/wiki/Static-filter-syntax#html-filters:

HTML filtering will work only on pages with character encoding compatible with: UTF-8, ISO-8859-1, Windows-1250, Windows-1251 and Windows-1252 (detailed mapping).

Also here some useful related information:

• HTML filtering not working in GBK's webpage. gorhill/uBlock#3405