Chrome Version       : 51.0.2704.106 (Official Build) m (64-bit)
URLs (if applicable) : https://www.amazon.com/gp/adlp/batmanvsuperman
OS version               : Windows 7
Network (such as Cable/DSL/Dial up etc): Cable (wireless)
Audio/Video format (if applicable): MP4
Special chrome flags (if applicable):

Behavior in Safari (if known): No blacked-out region
Behavior in Firefox (if known): No blacked-out region

Video issue, Audio issue, both, neither?
Video only

<b>Flash or HTML5?  <right-clicking most players will either reveal some text</b>
with “Flash”; otherwise likely HTML5>
HTML5

If the browser or renderer crashed (“Aw, Snap”), please add any crash
IDs from chrome://crashes  (possibly after enabling crash reporting per
http://support.google.com/chrome/bin/answer.py?hl=en&answer=96817)

What steps will reproduce the problem?
(1) Navigate to specified url and wait until looping banner video begins playing.
(2) Navigate to storefront page 
(3)

What is the expected result?
HTML5 video should show no visual artifacting when navigating away from the page.

What is the actual result?
A blacked-out region can be observed on the HMTL5 video while navigating away from the page.

Any additional information (anything else which may help us debug the
issue)?
Issue does not appear to happen when navigating to sparse pages (google.com, about:blank, etc)

Please attach the HTML5/JavaScript code or audio/video files as well as
screenshot and/or videos (if applicable)