I verified that this is fixed in Nightly 2025-06-07, using the attached poc.zip and steps at the end of comment 0. Nightly 2025-06-06 is BAD. (usually -- but not quite always -- triggers a content-process crash when loading poc.html) Nightly 2025-06-07 is GOOD. (was not able to trigger a content-process crash when loading poc.html) If I narrow further using mozregression --find-fix, I land on the autoland push in comment 26. (Additional QA verification is welcome; I wanted to do a quick first-pass verification myself as well, though.)
Bug 1966423 Comment 31 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
I verified that this is fixed in Nightly 2025-06-07, using the attached poc.zip and steps at the end of comment 0. Nightly 2025-06-06 is BAD. (usually -- but not quite always -- triggers a content-process crash when loading poc.html) Nightly 2025-06-07 is GOOD. (was not able to trigger a content-process crash when loading poc.html) If I narrow further using mozregression --find-fix, I land on the autoland push in comment 26. (Additional QA verification is welcome; I wanted to do a quick first-pass verification myself as well, though.) Note: I was testing in an Ubuntu 24.10 VM, and I had to use Xorg rather than Wayland (selectable via a cog at bottom-right of login screen) in order to avoid tripping bug 1970275 (which causes startup crashes for the past week or so of Nightly builds, so when running in a VM using wayland, for me at least).