1195136 - demo is smooth in Chrome, very slow in Firefox

Status: RESOLVED INCOMPLETE

(Core :: Graphics: Canvas2D, defect)

Description

[Kadir Topal [:atopal]]

This demo is is perfectly smooth in Chrome, but plays with only a few frames per second on Firefox: http://www.p01.org/releases/BLCK4777/BLCK4777_safe.htm

Comment 1

[:Gijs (he/him)]

--> to Untriaged for triage.

Comment 2

[Cosmin Muntean [:cmuntean], Ecosystem QA]

Firefox: 45.0, Build ID: 20160303134406  
User Agent  Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:45.0) Gecko/20100101 Firefox/45.0

Hi Kadir,

I have tested this issue on the latest Firefox (45.0) release, latest Nightly (48.0a1 - Build ID: 20160309030419) build. I have used the provided page and the browser hangs after trying to play the video. After a few seconds the "Unresponsive script" message is displayed and even if choosing to wait, the demo does not start and I am redirected to a different page. The same behavior is observed in Windows OS (7, 10).


Thanks,
Cosmin

Comment 3

[u279076]

The demo redirects to a 404 page as noted in comment 2. Please reopen if a working testcase can be found, and preferably one that can be attached to this bug so it isn't lost to time.