WebResource.axd requested without parameters - This is an invalid webresource request

Question

I\'m finding this problem every now and then in my production website, and it has me absolutely stumped...

My app works perfectly in both dev and production, but every n

Answer 1

That definitely is a bot not doing very good job of crawling your web site. It processes your web form and locates reference to WebResource.axd, for example:

The bot expects static JavaScript files only and tries to download it by requesting WebResource.axd without parameters. The result is an exception thrown by System.Web.Handlers.AssemblyResourceLoader class and intercepted by Application_Error in Global.asax.

I believe this exception is harmless - the client will receive 404 error. You can safely ignore it.