developers.box.com - Box.com developer API page extremely slow in Firefox

[adamopenweb]

URL: https://developers.box.com/view-api/
Browser / Version: Firefox 31.0
Operating System: Mac OS X 10.9
Problem type: Looks like the website has a bug.
Site owner: No

Steps to Reproduce

1. Navigate to: https://developers.box.com/view-api/ in Firefox
2. Watch your CPU usage max out

Expected Behavior:
Be usable, not freeze the browser.

Actual Behavior:
Browser freezes as CPU usage sky rockets

[karlcow]

Hmm on Blink Opera, the page is crashing.
It is smooth on Safari.

[hallvors]

Seems the slow stuff is in an IFRAME - URL is https://s3-us-west-2.amazonaws.com/demos.boxviewapi.com/3d.html

[hallvors]

Seems Gecko has some optimisation work to do on SVG + CSS transform-based effects..

[miketaylr]

@hallvors did you file a bug for this?

[hallvors]

Seems I didn't. Moving it here now: https://bugzilla.mozilla.org/show_bug.cgi?id=1261105