cross origin resource sharing (cors) on iphone (xmlhttprequest)

has anyone managed to get cors* working on the iphone?

i have it working in safari, chrome, ff, and android’s chrome, but iphone’s safari doesn’t work for me. any tricks on getting cors working for iphone?

thanks!
colin

* what's cors? see:
http://www.nczonline.net/blog/2010/0.../#comment-5583

update:
the iphone *simulator* even works, but the (latest) iphone doesn't : /

update:

I now have a reproducible test showing that iPhone's MobileSafari can successfully send a POST request via JavaScript's XMLHttpRequest, but only to a resource with the same origin as the host page. When the resource has a different origin (i.e., for cross-domain POST requests), no post data is sent to the server. The request's Content-Length header has the value 0.

Here is the test showing cross-origin requests failing:

http://moock.org/iphonecors/posttest.html

Here is the test showing same-origin requests succeeding:

http://unionplatform.com/xmlhttptest/posttest.html

All info/comments much appreciated!

colin