[Webkit-unassigned] [Bug 50176] New: Table rendering not update after matched css rule change

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50176

           Summary: Table rendering not update after matched css rule
                    change
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: xiyuan at chromium.org
                CC: dglazkov at chromium.org, arv at chromium.org


Created an attachment (id=75053)
 --> (https://bugs.webkit.org/attachment.cgi?id=75053&action=review)
Simplified test case.

- Have a container div that hosts a table;
- Use CSS[attr] to show/hide table row;
- After initial loading, container's attribute change will change the matched css rules but the rendered result does not change.

Attached is a test page. There are two rows in the table and when click on the top button, it changes container attribute which should hide the first table row and show the 2nd one. You can confirm that matched css rule changed from the inspector that row1 should have "display:none". However, row1 remains visible and row2 remains hidden.

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