This is similar to  bug 649052  but it happens repeatedly, where as that one only happened one time. 

 Issue 649052  has been merged into this issue.

I was able to reproduce this behavior in Chromium with YouTube. It also seems like you need to have just one space in existence before you take the movie fullscreen.

Bisecting produced the following:

You are probably looking for a change made after 378315 (known good), but no later than 378330 (first known bad).
CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/beab086f2531fb71d06b49ee23da38fa80fb0584..e3dad0e9d55f06072a0ee552d9a4d77c8991d613

This corresponds to M51. Nothing in the list of changes stood out as the culprit.

It appears to be related to the page in the space having focus, so it could have been an interaction with blink changes and fullscreen that wouldn't be obvious. 

At this stage, it's probably easiest to work backwards from how/when the Space is grabbing focus away from others and try to address that, rather than look at it from a regression/what changed perspective.

> At this stage, it's probably easiest to work backwards from how/when the Space is grabbing focus away from others and try to address that, rather than look at it from a regression/what changed perspective.

Please take a stab at debugging if you like.

I was getting ready to try reverting some of the cls in the bisect's change list, but this bug is not reproducible for me in Chromium 62.0.3169.0, nor the latest Canary (62.0.3172.0). This is on 10.13 17A315i.

You said in comment #3 that you could repro in order to bisect. Does that mean that M62 trunk no longer has this problem, or it was fixed in 10.13 for the same past builds?

I can/could repro it in the Chromiums that the bisect tool was offering up, and this was done on my 10.13 machine (which I mentioned in case it could somehow become relevant). It seems very unlikely that this bug is suddenly fixed in the very latest Canary but there's a chance - perhaps you can check?

Yes, I can still reproduce this on 62.0.3174.0 (Official Build) canary on macOS 10.12.6.

Pinging this per shrike's request. 

Closing this because it's no longer reproducible on Canary M64

I suspect this got fixed when sdy@ removed the invisible status bubble child window for LP Fullscreen mode. Please reopen this if it's still reproducible

This does appear better in canary, but i'll reopen if i see it with my main beta profile once I get onto M64beta. 

I can still reproduce this in M64 beta, exactly as described in comment 0. It only happens once, but it still reliably happens. 

cc'ing sdy in case he knows of other cases that would cause the status bubble child window to show up. 

Adding PE hotlist for consideration of next fixit. 

Adding PE hotlist for consideration of next fixit. 

This should be fixed on Canary now, by ed213854ffb5242584658b65a53081ff36ebaaa1 or its followup, 57a73a51aa9de8ec4e93ee414c32aed8fb81d0a5. Pink, let me know if you still see it?

I'm marking this fixed, but let me know if it's not!

I can still reproduce this on canary Version 66.0.3332.0. Reopening. 

This still happens even when using MacViews browser. 

Ooh, thanks.

**Mass UI Triage **

We were unable to reproduce this bug on the latest canary 72.0.3616.0 on Mac OS 10.13.6(I could repro this on 60.0.3094.0). If this bug still reproduces for you, please reopen or file a new issue. Thanks!