Syntax error “illegal character” on loading MicrosoftAjax.js in Firefox but not in Chrome
I get the following error but only in Firefox on loading an ASP.NET page:
SyntaxError: illegal character 1 MicrosoftAjax.js:1
If I try to debug this and load the source of MicrosoftAjax.js from the Firefox console I only get garbage characters which makes me guess this is some kind of encoding issue. However, I never get this issue in Chrome. I don't believe this is actually related to the MicrosoftAjax.js source file.
Maybe someone already had a similar problem? I spent many hours looking for a solution with no luck.
(Some text on the screen-shot is in German but I think you get the point)