UserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36

Steps to reproduce the problem:
(1) Open the shared URL (http://discovertheweb.co.in/auto-play-demo/)
(2) Now Play the video and click on the Testing Button, in iniline, an alert will popup. Also scroll the content inside the div it works
(3) Now, play the video in full screen and repeat the step 2, now none of the mouse event working neither click nor scroll.

Everything was working till Chrome Version 63 but the issue has been started once we update to 64+ version.  

What is the expected behavior?
What is the expected result? Expect to work all the mouse event 

What is the actual result? All Mouse event has been disabled 

What went wrong?
If we display any html element above the video tag layout, none of the mouse event working. 

Did this work before? N/A 

Chrome version: 64.0.3282.140  Channel: stable
OS Version: 6.3
Flash Version: