Thanks for filing the issue...

@Reporter : It would be really helpful if a sample URL/Extension is provided, so that we can investigate the issue further.

Thanks.!

Thanks for mailing the link..

Tried to reproduce the issue on reported chrome version 70.0.3538.67 and latest stable 70.0.3538.77 on Windows 10 by following below steps.

1. Launched reported chrome.
2. Navigated to provided url in mail 
3. Clicked on START >>Walked Character into the Ring with arrow keys >>Clicked on  'E'
As we are not seen YouTube player when clicked on "E"
Attached screencast for reference.

@Reporter: Request you to please check the screencast and confirm if anything is missed from our end in triaging the issue. Could you please upgrade to latest chrome stable
" https://www.chromium.org/getting-involved/dev-channel ". Let us know whether issue still persists.

Thanks.!

Deleted: 899928.mp4 17.1 MB

899928.mp4 17.1 MB Download

Is this still occurring? I'm able to play/pause the robotics video inside your 3d scene. 

Windows 10, Chrome 70.0.3538.110. Unlike the video in comment #3. I see the 'E' and am able to play it correctly, pause it with the mouse.

When Chrome's zoom is set to 100%, YouTube works as expected. When the zoom is less than 100%, the video controls and overlays appear to be offset aren't usable. This appears to be related to Chromium  issue #902831 
https://bugs.chromium.org/p/chromium/issues/detail?id=902831

Thank you for providing more feedback. Adding the requester to the cc list.

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

Per comment 5, putting this in the same component as the referenced bug

As per comment #5, retried the issue on reported chrome 70.0.3538.67 and latest beta 71.0.3578.62 using windows 10. attaching screencast for reference.
Steps:
-----
1. Launched chrome and changed zoom to 75%
2. Navigated to provided url in the mail 
3. Clicked on START >>Moves character into the ring with arrow keys >>Clicked on  'E'
As we have observed YouTube player functioning normally and browser blinks when youtube launches 

@Reporter: Request you to please check the screencast and confirm the issue.

Thanks..!

Deleted: 899928.mp4 10.7 MB

	899928.mp4 10.7 MB View Download

The NextAction date has arrived: 2018-12-04

Can someone with the link email it to me please, or better put it on some internal site we can all access.

Meanwhile, still waiting on feedback for the video in comment #8.

The NextAction date has arrived: 2018-12-24

The NextAction date has arrived: 2019-01-07

Closing. We need to know why the video in Comment #8 is not reproducing the issue. Re-open the bug when feedback is available.