Why does FireFox 3.6.8 not cache static contents from asp.net developer server?

Question

I am working on a asp.net web site, like normal user, we use asp.net developer server during coding and testing. Today, I found the firefox not cache any static file of my s

Answer 1

ASP.net Dev Sever

According to my running of Fiddler2, it caches the files, ie 304s(Not Modified) responses are done

• ScriptResource.axd
• WebResource.axd

Same behanviour occurs in both IE 8 and FF 3.6.8 IE8 has to be set to Automatically check for new versions of a page for this to occur.

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IIS

Running it on IIS causes both FF and IE to cache static content.

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This caching is due to the webserver adding a last-modified header to the response.

You can get fiddler to listen to localhost by using localhost. instead ( http://weblogs.asp.net/asptest/archive/2008/08/13/tip-on-using-fiddler-with-cassini-and-localhost.aspx ).