In working with Flex and Flash I have used the crossdomain.xml several times. For someone new to Flex or Flash it is somewhat difficult to explain why it is needed. I end up drawing pictures and probably confuse the developer even more.  Martijn De Visser has an excellent explanation and slideshow on his blog. Check it out... The first time I looked at the slides I thought it was just a simple image, check out the NEXT button on the bottom right.

The links are broken

The correct link should probably be: http://www.martijndevisser.com/blog/article/why-crossdomainxml-is-a-good-thing

Fixed the links

Hi,

My site has crossdomain.xml in its root. I handle login to my site through a flash object. Until recently, before making a secure login call, crossdomain.xml file was being loaded (also in https).

Now the login functionality is being handled by a user control. When my object needs to make a secure call, crossdomain.xml is not being loaded and as a result, my request fails. Can you suggest what could be wrong?