Azure CDN Microsoft Standard Rules Engine Rewrite URL For Single-page-application
Answer : I finally got a working answer from Microsoft Support on this. They said that the Microsoft CDN Rules Engine does not support URL file extension Not Any and instead I should check for the length of the file extension. Condition: URL file extension Operator = Not greater than Extension = 0 Case Transform = No transform Action: URL rewrite Source Pattern = / Destination = /index.html Preserve unmatched path = No This solution works for me. Make sure to purge your cdn cache before testing. If none of your page URLs contain a dot, you can set a rule as follows: Condition: 'URL file extension' = Not Any (i.e. there is no extension) Action: 'URL rewrite', source = / destination = index.html Preserve umatched path = No This will rewrite any URL without a dot in the trailing section to index.html.