[Webkit-unassigned] [Bug 225383] New: Text elements randomly disappear after hovering, page eventually crashes/reloads.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=225383

            Bug ID: 225383
           Summary: Text elements randomly disappear after hovering, page
                    eventually crashes/reloads.
           Product: WebKit
           Version: Safari 14
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Compositing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tomc at caurea.org
                CC: simon.fraser at apple.com

I have a website where some text elements randomly disappear after the user is moving the cursor a bit to hover over various parts of the website. After moving the mouse a bit more, the page eventually crashes («This webpage was reloaded because a problem occurred»).

This bug is hard to reproduce because it seems to be dependent on the hardware. I can't reproduce it on my M1 MacBook, the report came from a user who has a MacBook Pro (15-inch, 2018), and a second user whose HW specs I don't know yet.

I couldn't create a test case yet (as it's impossible for me to actually trigger this bug), I have a screen recording though.

Also, it's an Apple internal website, so can't share the link here. But I can add the link and the screen recording to the rdar once you create it.

BTW, is there a way to see more details as to why the website was reloaded or what exactly the problem was? The simple «This webpage was reloaded because a problem occurred» message is not useful.

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