Recently had this problem with a customer. The full details and the solution follow.
Problem The customer had an AJAX website where intermittently he sees that the webresource.axd and scriptresource.axd come down from the server as 0 bytes and therefore the page is incorrect. When the issue happens, it keeps happening until the customer does an IIS reset or reloads the AppDoman by making some changes in the web.config.
The customer can repro the issue faster if he has HTTP Compression turned on but the issue happens even without compression. In the Fiddler, netmon or FREB tracing, we see that the server sends a HTTP 200 OK response and only the response headers with no body.
Cause There are a few things at work here. First there is a known bug in IE8 that is part of the problem. We have know ...
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