A: 

I would expect the unexpected when rendering on top of an iframe, similar to when a div is positioned over a flash video. It can work, and sometimes does. But scrolling or movement in the flash or iframe can trigger some rendering issues.

Is there any chance you could use a different solution then the iframe? Would using a library like cURL to get the data off a different page suffice?

alex  2009-05-11 23:32:52
Thanks for your reply!No, we can't get away without an IFrame, we want to let users use the other site inside ours. Proxying it through cURL will break most modern sites, since a lot of them depend on Javascript working for a lot of their functionality.I agree that drawing over an IFrame is "weird". I didn't even expect the z-index to work when I first tried it, but in truth, all the other browsers behave PERFECTLY, even crappy IE6...
Daniel Magliola  2009-05-11 23:37:51
Well, I guess it depends on how many users use Safari vs How bad you want people to use this functionality. cURL can still work with JS.. loop through the external references and make them absolute paths. Of course, this method is not a good way either. Just a suggestion.
alex  2009-05-11 23:56:05
Yeah, that's a security disaster waiting to happen... :-)Plus looping through the external references is an ideal-word solution. Lots of site include JS dynamically by doing weird Response.Write's, adding <script> elements, etc. But above all, it's a big security hole i'm not willing to try to close by myself (like Facebook does with their FBJS)
Daniel Magliola  2009-05-12 00:22:54
Isn't response.write part of ASP? cURL can only get what is outputted to the browser.
alex  2009-05-12 01:09:16
+1  A: 

Oh! Fun! It's been reported as a bug already :-(

https://bugs.webkit.org/show_bug.cgi?id=25216

Daniel Magliola  2009-05-11 23:35:25

related questions

Does Google Chrome display pages the same as Safari?
Disable anchors in Chrome/WebKit/Safari
How do I set cookies from outside domains inside iframes in Safari?
Is Http Streaming Comet possible in Safari?
How do I detect a keyboard modifier in a bookmarklet?
What browser features/plugins for opera, IE, firefox, chrome, safari, etc. do you use for browser compatibility testing?
Copy / Put text on the clipboard with FireFox, Safari and Chrome
How can I get <asp:menu> working in Safari??
Is there an equivalent to ctrl-shift-r in Safari/WebKit?
Full page zoom in Safari
Consistent outdent of first letter with CSS?
Page transitions effects in Safari?
What Safari-specific pure CSS hacks are out there?
Automate Safari web browser using c# on Windows
Best way to write a Safari 4 Extension [obsolete]
Something special about Safari for Windows and AJAX?
Where is the console API for WebKit/Safari?
Floats messing up in Safari browsers
why are all links in my site are red, in google chrome and safari?
Javascript Animation with Safari
The Safari Back Button Problem
Search Plugin for Safari
Debugging Javascript in Internet Explorer and Safari
How to make a Flash movie with a transparent background
Viewstate invalid when using Safari