tried build 9202.54.0/57.0.2987.115 on daisy but couldn't reproduce this issue, please screenshot.

Deleted: Screenshot 2017-03-20 at 2.29.26 PM.png 681 KB

	Screenshot 2017-03-20 at 2.29.26 PM.png 681 KB View Download

Able to reproduce the issue on 9202.54.0/57.0.2987.115 -Daisy.  

Able to reproduce the issue on 58.0.3029.31/9334.18.0 - Blaze
Ex:  http://www.cnn.com/videos/cnnmoney/2017/03/22/adam-schiff-response-devin-nunes-trump-communications-report-sot.cnn

yes issue reproduce while the video is on the right side of the page.

Can't reproduce on Mac, is it ChromeOS-specific? Requesting a bisect to figure out if it's a regression or not.

foolip@, we don't have a good way to bisect on ChromeOS unfortunately. However, from the details in this bug, it seems like it exists on 56, 57 and 58. Do you have access to Chromebooks?

I have an old Chromebook Pixel that I'm updating now to see if I can reproduce. Without knowing if this is a regression, however, I don't know whether to prioritize it of other fullscreen work.

I can reproduce with http://www.cnn.com/videos/cnnmoney/2017/03/22/adam-schiff-response-devin-nunes-trump-communications-report-sot.cnn using ChromeOS 57.0.2987.137.

I believe the problem stems from the style="left: 890px" attribute on the div that is the document.webkitFullscreenElement. The computed style is left:890px but the with is 1280px, which is also the screen width. There's nothing in our fullscreen.css which attempts to reset the left property, although there should be per https://fullscreen.spec.whatwg.org/#user-agent-level-style-sheet-defaults. This would be fixed by  issue 240576  which will involve matching the stylesheet from from the spec.

I see no reason why this bug shouldn't affect other platforms, but it seems like different content is being served. On my Mac, after entering fullscreen, the inline style changes to style="left: auto;" and the computed style is left:0px.

Does the ChromeOS team have a program for outreach when sites are misbehaving badly in ChromeOS only, something similar to https://github.com/webcompat/web-bugs? Getting CNN to update their site would be the most expedient here, and apparently they already have a workaround for Chrome on some platforms like Mac.

+zel for possible contacts at CNN to make behavior of Chromebooks same as other Chrome platforms.

Thanks for investigating! I have to say though that in the past we have not been very successful in websites changing their behavior for Chromebooks. Marking this as blocked. Also I think users can work around this reasonably simply, so we should be able to wait until  issue 240576  is fixed.

I won't be working on this soon, making available, to revisit after  issue 240576  if nobody increases the priority.

Sounds reasonable.

 Issue 737408  has been merged into this issue.

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

No longer reproduces. Closing.