Bug 37640 - beforeload event listener messes up dragging Bing Maps
Summary: beforeload event listener messes up dragging Bing Maps
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebCore Misc. (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Nobody
URL: http://maps.bing.com
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2010-04-15 00:12 PDT by Brian Weinstein
Modified: 2010-04-16 12:02 PDT (History)
3 users (show)

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Description Brian Weinstein 2010-04-15 00:12:24 PDT 
STEPS TO REPRODUCE:
1) Go to maps.bing.com
2) Try to drag the map around slowly, notice that it is working fine, and is smooth.

3) Run: 

javascript:document.addEventListener("beforeload",function(event){},false)

in the URL field.

4) Try dragging the map slowly again

EXPECTED RESULTS:
The map still drags smoothly

ACTUAL RESULTS:
The dragging flickers a lot and is almost unusable.

This flickering is coming from the beforeload event handler that is doing nothing.
Comment 1 Brian Weinstein 2010-04-16 12:02:50 PDT 
<rdar://7805876>