Bug 142195

Summary: poster attribute causes unwanted video size
Product: WebKit Reporter: greg
Component: DOMAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: eric.carlson, jer.noble
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   

Description greg 2015-03-02 16:09:44 PST 
if the poster attribute on a <video> element contains a missing file it will cause unwanted scaling of the video element. the height of the video will be the same as it's width. this causes a padding on the top and bottom of the element.
The issue is also visible until the image is loaded. This causes flashing.

Reproduce: http://codepen.io/pixelass/pen/vEaEEW