asp.net - The HTTP verb HEAD is unrecognized and unsupported -

after attaching of great dotnetopenauth project site, have got lot of unhandled exceptions below. please me this?

event message: unhandled exception has occurred. event time: 1/9/2010 5:59:04 event time (utc): 1/9/2010 11:59:04 event id: fa8b51280ff94c52b24658def6e0a530 event sequence: 9 event occurrence: 1 event detail code: 0  process information:    process id: 3568    process name: w3wp.exe    account name: nt authority\network service  exception information:    exception type: system.argumentexception    exception message: http verb 'head' unrecognized , unsupported. parameter name: httpverb  request information:    request url: http://www.amiproject.com/    request path: /    user host address: xxx.xxx.xxx.xxx    user:    authenticated: false    authentication type:    thread account name: nt authority\network service  thread information:    thread id: 8    thread account name: nt authority\network service    impersonating: false    stack trace:    @ dotnetopenauth.messaging.errorutilities.throwargumentnamed(string parametername, string message, object[] args) in c:\buildagent\work\7ab20c0d948e028f\src\dotnetopenauth\messaging\errorutilities.cs:line 321   @ dotnetopenauth.messaging.messagingutilities.gethttpdeliverymethod(string httpverb) in c:\buildagent\work\7ab20c0d948e028f\src\dotnetopenauth\messaging\messagingutilities.cs:line 663   @ dotnetopenauth.messaging.messagingutilities.getrecipient(httprequestinfo request) in c:\buildagent\work\7ab20c0d948e028f\src\dotnetopenauth\messaging\messagingutilities.cs:line 647   @ dotnetopenauth.oauth.channelelements.oauthchannel.readfromrequestcore(httprequestinfo request) in c:\buildagent\work\7ab20c0d948e028f\src\dotnetopenauth\oauth\channelelements\oauthchannel.cs:line 150   @ dotnetopenauth.messaging.channel.readfromrequest(httprequestinfo httprequest) in c:\buildagent\work\7ab20c0d948e028f\src\dotnetopenauth\messaging\channel.cs:line 372   @ dotnetopenauth.oauth.serviceprovider.readrequest(httprequestinfo request) in c:\buildagent\work\7ab20c0d948e028f\src\dotnetopenauth\oauth\serviceprovider.cs:line 222   @ relyingpartylogic.oauthauthenticationmodule.context_authenticaterequest(object sender, eventargs e) in c:\my data\project\amiproject source\relyingpartylogic\oauthauthenticationmodule.cs:line 60   @ system.web.httpapplication.synceventexecutionstep.system.web.httpapplication.iexecutionstep.execute()   @ system.web.httpapplication.executestep(iexecutionstep step, boolean& completedsynchronously)   --------------- 

you found bug. thanks. i've filed it.

in meantime, can workaround modifying relyingpartylogic oauthauthenticationmodule.cs file's context_authenticaterequest method this:

private void context_authenticaterequest(object sender, eventargs e) {     // don't read oauth messages directed @ oauth controller or else we'll fail nonce checks.     if (this.isoauthcontrollerrequest()) {         return;     }      if (httpcontext.current.request.httpmethod != "head") { // workaround: avoid involving oauth head requests.         idirectedprotocolmessage incomingmessage = oauthserviceprovider.serviceprovider.readrequest(new httprequestinfo(this.application.context.request));         var authorization = incomingmessage accessprotectedresourcerequest;         if (authorization != null) {             this.application.context.user = oauthserviceprovider.serviceprovider.createprincipal(authorization);         }     } }