Same as  issue 701965 , I don't think this is related to WebGL. Adding IO>PointerLock.

Reproduced on Linux.

I don't understand the reproduction steps. It doesn't seem reproducible on a MacBook Pro Retina with a trackpad, as opposed to a mouse.

The camera angle jumps when the mouse is moved after some scrolling.

I can't repro on a MacBook Air either, perhaps the system is only sending pixel scrolling events (and not discrete scroll events), which might bypass the issue.

Reproduced on Windows & Linux. Google Chrome	57.0.2987.98

Pointer lock impl on Mac is different, doesn't use 'warping', so that may explain the difference. 

Still not fixed on chrome 58.0.3029.81? are you serious?
Chrome was the first to remove the unity web player plugin and now, 2 year after that, we still can't have something "stable" for our webgl game....

Deprecate IO>PointerLock

Do that mean that this issue will not be solved?

Comment 9 only changed the labeling of how we group issues. This issue remains open. 

Can we have an update on this issue? i have reported it 4 month ago and it's still not fixed. It's a big problem for an FPS game in WebGL.
Thank you.

6 months after the report, it's still the same..... Can you take a look please ....

Un-assigning myself as I no longer work on PointerLock.

Thank you for your answer, i hope that you can assign someone else on it.

Cannot reproduce the issue on Chrome 61.0.3163.100 Linux and Windows. 
Is this issue happen in virtual machine or remote desktop?

Reproduces for me on Linux 61.0.3163.100.

@eirage , it's important to lock the cursor by pressing tab. Linux and windows version are affected.

Yes, I did lock the cursor. I can repro it now, around once out of 20 times. It doesn't happen as frequent as the video shows.
I added a mousemove event listener in console to log movementX/Y on mousemove event. I didn't see abnormal movementX/Y data while the camera jump. (with such a jump, I assume it must be a 200+ movement)
Also test with this: http://output.jsbin.com/raheyun, I didn't see any jump or abnormal movement either.

Is it possible that not movementX/Y but something else cause the camera rotation? 

While I reproduce regularly with the Unity build at http://www.asr-games.net/WebGLProblem/ I also do not easily reproduce on a simple javascript test page.

I've updated this one to allow preventing scrolling:
https://scheib.github.io/HTMLMisc/PointerLockLog.html

I'm unsure how the Unity export is preventing scrolling.  It may be related to why this is happening.

Thank you for your answer, Marco-Trivellato from unity will take a look, also, it's strange because it do not happen in firefox.

looks like a duplicate of 699956

I met this issue at both my project and three.js example page: https://threejs.org/examples/?q=pointer#misc_controls_pointerlock 

this happen on my laptop with win10, but work fine on another win7 pc, both with a low-end AMD graphic card. 
don't no if it's related.