asp.net mvc 5 - Why MVC5 gives this error "The requested resource does not support http method 'OPTIONS' "? -


i have updated application mvc4 mvc5, when run mvc4 works fine mvc5 gives error {"message":"the requested resource not support http method 'options'."} in fiddler.

1) *request application of mvc5 in fiddler : *

options /api/controller/method http/1.1 host: example.com connection: keep-alive access-control-request-method: post origin: http://wyx.com user-agent: mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, gecko) chrome/33.0.1750.146 safari/537.36 access-control-request-headers: referer, content-type accept: */* referer: exampleimage.gif accept-encoding: gzip,deflate,sdch accept-language: en-gb,en-us;q=0.8,en;q=0.6

*response of mvc5 application in fiddler : *

http/1.1 405 method not allowed cache-control: no-cache pragma: no-cache **allow: post** content-type: application/json; charset=utf-8 expires: -1 server: microsoft-iis/7.5 x-aspnet-version: 4.0.30319 x-powered-by: asp.net access-control-allow-origin: * access-control-allow-headers: origin, x-requested-with, content-type, accept date: mon, 10 mar 2014 13:32:48 gmt content-length: 76

2) ** request application of mvc4 in fiddler **

options /api/controller/method http/1.1 host:  example.com connection: keep-alive access-control-request-method: post origin: http://wyx.com user-agent: mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, gecko) chrome/33.0.1750.146 safari/537.36 access-control-request-headers: referer, content-type accept: */* referer: exampleimage.gif accept-encoding: gzip,deflate,sdch accept-language: en-gb,en-us;q=0.8,en;q=0.6

*response of mvc5 application in fiddler : *

http/1.1 200 ok **allow: options, trace, get, head, post** server: microsoft-iis/7.5 public: options, trace, get, head, post x-powered-by: asp.net access-control-allow-origin: * access-control-allow-headers: origin, x-requested-with, content-type, accept date: mon, 10 mar 2014 13:54:08 gmt content-length: 0

why in mvc4 allow " allow: options, trace, get, head, post , in mvc5 : allow: post

i tried in mvc5 in web.config ::

 <system.webserver>       <modules runallmanagedmodulesforallrequests="true">       </modules>     <httpprotocol>           <customheaders>             <remove name="access-control-allow-origin" />             <add name="access-control-allow-origin" value="*" />             <add name="access-control-allow-headers" value="*" />             <add name="access-control-allow-methods" value="*" />            </customheaders>         </httpprotocol>     </system.webserver>

but it's not working.

can check api initializer , verify have 

globalconfiguration.configure(webapiconfig.register);

instead of 

webapiconfig.register(globalconfiguration.configuration);

this fixed exact same issue me. errors indicate routes not set @ ;)


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