angular-ui/bootstrap — pull request #809 by mysza (2013-08-13 22:14:32+00:00)
Title: Fixed problem with offsetWidth being set in carousel

The HTMLElement ($element) offsetWidth property is read only.
The carousel forces the reflow by assigning to this property, which causes exceptions in Firefox and Safari browsers on OSX (I'm unable to test it anywhere else). But - reading the property does the trick, so I think it's enough to read it (unless I don't know about something).