[Webkit-unassigned] [Bug 203674] New: Inserting element with table styling into DOM causes freeze

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=203674

            Bug ID: 203674
           Summary: Inserting element with table styling into DOM causes
                    freeze
           Product: WebKit
           Version: Safari 13
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Major
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jonathan at kingandpartners.com

Created attachment 382454

  --> https://bugs.webkit.org/attachment.cgi?id=382454&action=review

Bug reproduction example

We're running into problems with Safari unexpectedly locking up on iOS 13.1

It seems to require the following steps:
1. Clicking a checkbox
2. Triggering an event handler which inserts HTML
3. The inserted HTML is styled with `display: table`

I've attached a reproduction example, checking the box and clicking "Apply" will reproduce the hang.

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