Invalid Webresource.axd parameters being generated

Question

Original Question:

We have an odd error with WebResource.axd url generation. (It does not seem to be related to the fairly common \"WebRsource.axd Padding is invali

Answer 1

Have you got any HttpHandlers or Modules that are registered in the web config that modify the rendered HTML before it's sent to the user?

These can often be:

• Minifiying JS and CSS
• Ensure HTML is valid

Might be worth a look.