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http://jsfiddle.net/hdtJn/

I believe this is what you want, opening this in IE9 nothing happens. Opening this in chrome, I get the expected alert. For whatever reason, the $.isready never gets set to true when the <embed /> tag is in the html. Possibly an IE9 bug and not a jQuery bug.

Confirmed. alert-less reduction here: http://jsfiddle.net/rwaldron/Ume9Y/

I just wanted to add that the culprit appears to be the empty src="" attribute. This is also causing an issue in FireFox where you have to hit escape for the page to fire the ready event. I think FireFox and IE9 are requesting a location of "/" when src is empty which causes the browser to never think its finished loading.

This may not be something jQuery can not detect and it might rightfully not be something it should detect.

Just for clarification of the empty src="", we have several links to videos and 1 modal window that loads the src depending on which link is clicked.

Perhaps omitting the src="" attribute until you actually need it?

Bingo, I changed the src="" to src="#" and it works now...

http://jsfiddle.net/rwaldron/Ume9Y/

Yea, looks like we were both trying the same thing at the same time, haha. Thanks for your time;)

You're welcome!

for the record, this is probably also fixed by jQuery.quickReady in 1.8pre. I can imagine that readyState gets hung at "interactive" with empty src. I'm going to verify that just for fun.