I’ve recently decided to update a webservice of mine. I added some business code and also added some startup code in
global.asax. The work took a couple of hours and this was the first time in a month I touched the project. When I hit F5 to debug the browser just said
HTTP Error 403.14 - Forbidden. Well - what is this? No Yellow Screen Of Death or anything, just a bad IIS response.
I went through my code, tried to change ports on IIS Express and cleaned up my applicationhost.config. Nothing worked.
I started going back to older commits and everything worked. Turns out in the changes I made I introduced
async/await in the global.asax
Application_start and returned a
Task instead of
async/await and everything worked again!
Hopefully someone will find this helpful while googling in despair!