[Webkit-unassigned] [Bug 134457] New: WebKit Nightly, iOS8 height of a single CSS region is not being respected

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=134457

           Summary: WebKit Nightly, iOS8 height of a single CSS region is
                    not being respected
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jkwok at netflix.com


Created an attachment (id=234094)
 --> (https://bugs.webkit.org/attachment.cgi?id=234094&action=review)
Demo

Instead, it inherits the height of the named flow. This only occurs when one CSS region is defined for a particular named region:

#content {
    -webkit-flow-into: content;
}
#region1 {
    height: 50px;
    -webkit-flow-from: content;
    -webkit-filter: blur(5px);
    -webkit-transition-property: -webkit-filter;
}

<div id='content'>...</div>
<div id='region1'></div>

Only text in the #content container that falls into #region1 should be blurred, i.e. top 50 pixels. This behaves as expected on iOS7 and the latest stable version of Safari on Mac OS X.

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