137076 2014-09-24 14:09:11 -0700 YouTube iFrame is missing (sometimes duplicated?) upon cached reload of a webpage 2017-11-29 12:12:18 -0800 1 1 1 Unclassified WebKit DOM 525.x (Safari 3.2) All All NEW http://uvu.edu/woodbury P2 Normal --- 1 kylesethgray webkit-unassigned ap cdumez darin koivisto oldest_to_newest 1037022 0 kylesethgray 2014-09-24 14:09:11 -0700 If you embed an iFrame on a webpage, and you click forward to some other page; once you hit the back button and reload the first page, the iframe is duplicated among all iframes. e.g. on example URL, scroll down, note the two youtube videos, click a link, and then go back. The video is now duplicated, or the first video is missing. 1037618 1 ap 2014-09-26 21:50:49 -0700 I could only reproduce missing first video in Safari 7.1, never a duplicated one. The missing video issue occurs most of the time, but not 100%. It seems like a real bug - there is an honest <iframe src="http://www.youtube.com/embed/W7tj1vRDtUw">, which remains blank. Instead of a plug-in document, we have an empty document here.