WebResource.axd empty or corrupted when Httpresponse.Filter is modified

I had a problem with WebResource.axd file that was send to client either empty or corrupted. It was a major problem as I was missing auto generated code for client callbacks.
My problem was in an old piece of code modifying HttpResponse.Filter that was updating every page body before transmission to client.


Here you can find workaround for the problem.


Hope this helps someone.
Regards,
Oleh