ADFS : HttpException (0x80004005) : Failed to Execute URL

Got this exception on a web site (SP) talking to ADFS 2012 R2 using SAML-P 2.0.

So long conversation with Mr. Google.

The garbage that comes up on these searches these days is ridiculous  It takes you hours to sift through all the dross.

Suggested actions:

• Change the IIS pipeline mode to Integrated instead of Classic for the site.
• Send a dummy Name claim.
•  How To Resolve HttpException (0x80004005): Failed to Execute URL

The last one looked like a no-brainer because it specifically talks about a site behind ADFS. Except ... it didn't work.

The second was the suggestion from:

Failed to Execute URL Exception when on windows 2003 relying party with IIS 6 .

@paullem suggested that it was because the Name claim was null. The fix was to add a dummy claim inside CAM (the Claims Authentication Manager).

I was using ADFS and the Name claim wasn't used to I simply ran up a static claim i.e.

=> issue(Type = "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name", Value = "Joe Bloggs"); 

That seemed to do the trick.

Enjoy!