Thursday, November 01, 2007

Using floating IFrames in Flex 3 Beta: wmode buh-bye?

Just a quick one today... we're porting some work to Flex 3 where we do the floating Iframe thing, and noticed some strange behaviour changes. In Firefox, the floating Iframe would briefly flash into view and then disappear, while in IE the Iframe would appear, however if we clicked into the IFrame embedded html page and then clicked outside it somewhere on the flex app, the IFrame would disappear from view.

Took a little bit of sniffing around but in the end the culprit was the html-template\index.template.html file. For some reason, and it might well be a very good reason, the property wmode is no longer included in the flash player tags ("wmode", "opaque" in AC_FL_RunContent() && wmode="opaque" in <EMBED>) in FlexBuilder 3. Once we added those back in, the floating IFrame started working again.

5 comments:

Conrad said...

thanks for this!

vw said...

Thanks for saving my sanity!

Ralph said...

You are a life saver. Thank you very much

Sanju said...

Rylisa
Thanks for this one

Anonymous said...

Still seem to have problems with firefox being showing the white background in my pages as the background color of the underlying flex application. It is slightly grayed out too, so even if I set the background color to completely white, it looks off. IE works fine