twitter/bootstrap — pull request #4172 by Korko (2012-07-24 19:11:26+00:00)
Title: Only show tooltip when inside img are loaded (to have correct sizes)

Hi,

I was having difficulties with using inside popover as they were loaded after the popover is displayed so they were always misplaced until the picture is already in cache. So here's my fix.

Hope this will help.