1420687 - Bug witg Replay player function on warcraftlogs.com (zoom and the player)

Status: UNCONFIRMED

(Core :: Graphics: CanvasWebGL, defect, P3)

Description

[Skunksx]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20171112125346

Steps to reproduce:

I went to "https://www.warcraftlogs.com/reports/Ncp4azk6HAxFgt2v#fight=1&view=replay" but any replay on this website would do the same. 
Then, used my mouse wheel to zoom in and out.
Tried to moove the cursor of the player left and right.


Actual results:

The Zooming in and out when mousewheeling is extremely laggy or don't happen at all.
Mooving the cursor of the player left and right (like mooving it on youtube for example) is laggy too and can bring the replay at a totally different moment that the one selected.  


Expected results:

Zooming in and out should be smooth and reactive.
Mooving the cursor of the player left and right should be smooth, reactive and precise.

Comment 1

[Ryan Hunt [:rhunt]]

Could you paste your about:support here? I'm having some difficulty reproducing this. Has this always been occurring or is it a regression?

If you're able to, running mozregression may be able to determine what change caused this, if any. [1]

[1] http://mozilla.github.io/mozregression/

Comment 2

[Skunksx]

Here is my about:support : 

https://pastebin.com/XShMjcWz

This problem always occured since the new version of firefox, at least.

Was using opera for a while before this new version and i still use this nav to checks replays on warcraft logs with no problem. 

I tried to load the page without my firefox add-ons and that didn't change anything.

The only modification i did on firefox in about:config was the mouse wheel scrolling to be faster : 

mousewheel.default.delta_multiplier_y;300

I'll check how to use mozregression.