[Webkit-unassigned] [Bug 176670] New: [GTK] Telegram web app gets corrupted while your partner is writing a message

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=176670

            Bug ID: 176670
           Summary: [GTK] Telegram web app gets corrupted while your
                    partner is writing a message
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aboya at igalia.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 320394

  --> https://bugs.webkit.org/attachment.cgi?id=320394&action=review

An instance of Telegram web app corruption

How to reproduce:

1. Login in https://web.telegram.org/ (You will need a telephone number)
2. Open a chat with someone. Fortunately you can open a chat with 
   yourself, which is useful for testing.
3. Have the other person start typing without sending a message, just 
   enough for the "User is typing..." message to arrive. If you are 
   chatting with yourself, you just need to type.

Expected behavior:

"User is typing..." should appear.

Actual behavior:

All scrollables within the document get corrupted turning either white,
black or blue until the user stops typing.

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