renamed header.

app/assets/javascripts/application.js

@@ -52,7 +52,7 @@ if (typeof []._reverse == 'undefined') {
 }
 
 jQuery(document).ajaxError(function(event, request, settings) {
-  if (request.status === 401 && /Reason: login needed/.match(request.getAllResponseHeaders())) {
+  if (request.status === 401 && /X-Reason: login needed/.match(request.getAllResponseHeaders())) {
     if (confirm(I18n.t("js.logoff") + "\r\n" + I18n.t("js.redirect_login"))) {
       location.href = openProject.loginUrl + "?back_url=" + encodeURIComponent(location.href);
     }
@@ -506,7 +506,7 @@ document.observe("dom:loaded", function() {
       }
     },
     onComplete: function(request, result){
-      if (result.status === 401 && /Reason: login needed/.match(result.getAllResponseHeaders())) {
+      if (result.status === 401 && /X-Reason: login needed/.match(result.getAllResponseHeaders())) {
         if (confirm(I18n.t("js.logoff") + "\r\n" + I18n.t("js.redirect_login"))) {
           location.href = openProject.loginUrl + "?back_url=" + encodeURIComponent(location.href);
         }

app/controllers/application_controller.rb

@@ -207,7 +207,7 @@ class ApplicationController < ActionController::Base
         end
         format.any(:xml, :js, :json)  {
           head :unauthorized,
-          "Reason" => "login needed",
+          "X-Reason" => "login needed",
           'WWW-Authenticate' => authentication_scheme + ' realm="OpenProject API"'
         }
       end