Our images for our site are handled via a ASHX handler (closed source COTS system). It accepts a key and returns an image response. In the process though, if an image is using SSL, it will return a non-SSL URL as a 301. This works fine in Firefox and the like.
The issue is with IE. In one scenario, we have the same image displayed twice in the HTML markup, both using this handler. On the first image request, it returns the image just fine (301-ing a HTTP redirected version of the URL). The second images however, does not display.
Could this be an issue with IE trying to retrieve the image from cache, but not being able to due to the response it's getting from the server (again, HTTPS -> HTTP via 301). Works fine in FF, broken in ALL version of IE.
Thanks!