Hi,
since today i get an Exception on IIS7.5 with ASP.NET MVC, but i dont know why.
It occurs while using System.Net.WebClient.DownloadString()
[WebException: The remote server returned an error: (500) Internal Server Error.]
If I open URL in Browser. Site shows up fine.
In VS2008 Debug Trace Status is: "200 OK"
The only thing it could see was:
Response.Headers" of Type Exception "System.PlatformNotSupportedException" caused. System.Collections.Specialized.NameValueCollection {System.PlatformNotSupportedException}
Please use integrated Pipeline Mode in IIS.
Both Website run within the same v2.0 .NET Application Pool with Integrated Pipeline enabled. DownloadString from e.g. google.com etc works. Only if I call the MVC it corrupts.
Called Controller in MVC looks like this:
public void online()
{
Response.Write(Date.Time.Now);
Response.End();
return;
}
It worked before. May someone can help to get more details to track down the error.
UPDATE:
Got it. Damn it. I checked Subversion History in ASP.NET MVC an checked every line. In my BaseController, i added recently:
string strUserAgent = Request.UserAgent.ToString().ToLower();
After remove. Everything works again. But why is System.Net.WebClient crashing when asking for UserAgent? Even with 200 Status. I'll give this a little investigation.