Bug 186051

Summary: Significant area painting milestone is often never fired on iPhone
Product: WebKit Reporter: Wenson Hsieh <wenson_hsieh>
Component: WebKit Misc.Assignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: sam, thorton
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Wenson Hsieh
Reported 2018-05-29 07:12:09 PDT
-_webView:renderingProgressDidChange: is rarely invoked with _WKRenderingProgressEventFirstPaintWithSignificantArea on iPhone, since the width of the relevantViewRect() used to determine how much of the page is painted is hard-coded to be 980.
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