Text becomes invisible on GitHub in editor panes

[kriegaex]

URL(s) where the issue occurs

Any GitHub issue, e.g. eclipse-aspectj/aspectj#195.

Describe the issue

When Web Annoyances Ultralist is active and I click "edit" on a GitHub issue description longer than the height of the editor pane and then jump to the end of the text using Ctrl-End, the bottom part of the text becomes invisible and only reappears after e.g. selecting the whole text to the top Shift-Ctrl-Pos1. If the cursor was at the end of the text last time before editing, the same occurs when jumping to the beginning with Ctrl-Pos1. Then the workaround is Shift-Ctrl-End, i.e. the reverse of before.

The same can happen when clicking "Quote reply" and the quoted text again is longer than the editor pane.

Deactivating Web Annoyances Ultralist fixes the issue.

Screenshot(s)

After clicking "edit" and jumping to the end of the text with Ctrl-End:

After Shift-Ctrl-Pos1, selecting all text up to the top:

After Ctrl-End again (workaround):

Versions

• Browser & Version: Google Chrome 107.0.5304.107 (Official Build) (64-bit)
• Adblocker (uBlock Origin, Adguard, Nano Adblocker, etc.) & Version: AdGuard browser extension 4.1.46

Settings

• Too many to list. Let's get into that if you cannot reproduce the problem.

Notes

I think that one or more of these rules which change the DOM of the page are responsible for what happens:

This problem started a few weeks ago. I cannot remember it for a long time, but definitely more than just a few days.

[yourduskquibbles]

@kriegaex Thanks for reporting.. unfortunately having difficulty reproducing but wondering if you add github.com#@#.previewable-comment-form textarea:not([id="issue_body"]):style(max-height: 315px !important;) to My Filters is there no longer an issue?

[yourduskquibbles]

If that doesn't solve the issue, does also adding github.com#@##issue_body, #new_comment_field:style(max-height: 557px !important;) (or only this exception filter) fix the issue? I think it's likely due to the max-height I am setting, I can try removing those from the list if this solves the issue for you.

[kriegaex]

Interestingly, the problem currently does not occur anymore, after it had bugged me for a long time. I just re-tested, and for now, it seems to be OK. Either something must have changed in the filter, or maybe something in GitHub's DOM is a bit different than before. Another possibility is, that disabling the filter list and re-enabling it has somehow changed the order in which filters are applied, and therefore now it looks fine.