jQuery ajax calls not working with ASP.Net Web Forms when FriendlyUrls are added

Question

The following code works just fine without FriendlyUrls turned on for an ASP.Net Web Forms project:

Answer 1

After spending way too much time on this, I found out that I needed to change this in App_Start/RouteConfig.cs:

//settings.AutoRedirectMode = RedirectMode.Permanent;
settings.AutoRedirectMode = RedirectMode.Off;