1588177 - Model viewer script on sketchfab.com hangs when opening and then closing Responsive Design Mode

Status: RESOLVED WONTFIX

(Core :: WebVR, defect, P3)

Description

[Brad Werth [:bradwerth]]

This may be a Graphics / OpenVR bug. Steps To Reproduce:

1. Navigate to www.sketchfab.com. Let the model load.
2. Trigger Responsive Design Mode. The site will reconfigure slightly in the reduced viewport space.
3. Close Responsive Design Mode. The tab hangs with a empty content on the page.

I get this error repeatedly in the console:

Unable to read VR Path Registry from /Users/<my_user_name>/Library/Application Support/OpenVR/.openvr/openvrpaths.vrpath

When I break with the debugger, I get various call stack that seems to indicate that the site code is busy drawing the model. Different breaks get different stacks -- there's no clear infinite loop.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The priority flag is not set for this bug.
:jgilbert, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 2

[:kip (Kearwood Gilbert)]

Repro'ed on Win10 x64 as well. Now doing mozregression.

Comment 3

[:kip (Kearwood Gilbert)]

A mozregression bisection points to:

Bug 1586050 - Don't blow away progress listeners when switching between local and remote processes
https://phabricator.services.mozilla.com/D48233

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

The priority flag is not set for this bug.
:kip, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

The bug assignee didn't login in Bugzilla in the last 7 months.
:jimm, could you have a look please?
For more information, please visit auto_nag documentation.