asp.net mvc 4 - Unable to sign out from Active Directory when using Azure ACS -


i using acs 2.0 in mvc 4 application.

it configured signing in, , works various providers including adfs. need implement sign-out functionality.

as this question outdated, used code these samples:

here how looks like:

    // load identity configuration      federationconfiguration config = federatedauthentication.federationconfiguration;      // wtrealm wsfederationconfiguation section      string wtrealm = config.wsfederationconfiguration.realm;     string wreply = wtrealm; //return url      // read acs ws-federation endpoint web.config      string wsfederationendpoint = configurationmanager.appsettings["ida:issuer"];      signoutrequestmessage signoutrequestmessage = new signoutrequestmessage(new uri(wsfederationendpoint));      signoutrequestmessage.parameters.add("wreply", wreply);     signoutrequestmessage.parameters.add("wtrealm", wtrealm);      federatedauthentication.sessionauthenticationmodule.signout();      var signouturl = signoutrequestmessage.writequerystring(); 

as result, sign-out url should redirect, dispose tokens , send me back. url looks following:

https://myacsnamespace.accesscontrol.windows.net/v2/wsfederation?wa=wsignout1.0&wreply=http%3a%2f%2flocalhost%3a61192%2f&wtrealm=http%3a%2f%2flocalhost%3a61192%2f 

as result, works expected google, yahoo, , microsoft accounts. when sign-out, , try access protected area, list of identity providers, , have sign-in again, if choose same provider.

but when use adfs provider, works that:

  • i click sign out , page of available providers

  • i select adfs provider again

  • i protected area old ad credentials

  • if have adfs provider, step 2 above skipped, , keep being sign-in without ability change user.

as see happens, acs not dispose security token got adfs, , re-uses it.

do have leads on how can force acs dispose token?

thanks in advance!

+1 @oren-melzer's answer: browsers cache http basic credentials , automatically re-send them. either move forms auth (which uses cookies) or on logout, deny browser's auth header, returning 401. "return 401 valid credentials" works clear browser, must require users close browser.


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