4 files changed, 33 insertions, 29 deletions
diff --git a/lib/caldav/http/basic_auth.js b/lib/caldav/http/basic_auth.js
index 07f083d..5b9f666 100644
--- a/lib/caldav/http/basic_auth.js
+++ b/lib/caldav/http/basic_auth.js
@@ -19,7 +19,8 @@
   }
 
   BasicAuth.prototype = {
-    __proto__: XHR.prototype
+    __proto__: XHR.prototype,
+    validateStatus: true
   };
 
 
diff --git a/lib/caldav/http/oauth2.js b/lib/caldav/http/oauth2.js
index 75e6334..8b3b9e5 100644
--- a/lib/caldav/http/oauth2.js
+++ b/lib/caldav/http/oauth2.js
@@ -44,6 +44,8 @@
   Oauth2.prototype = {
     __proto__: XHR.prototype,
 
+    validateStatus: true,
+
     _sendXHR: function(xhr) {
       xhr.setRequestHeader(
         'Authorization', 'Bearer ' + this.connection.oauth.access_token
diff --git a/lib/caldav/request/abstract.js b/lib/caldav/request/abstract.js
index 6f33af4..acc91cc 100644
--- a/lib/caldav/request/abstract.js
+++ b/lib/caldav/request/abstract.js
@@ -2,20 +2,6 @@
 
   var SAX = ns.require('sax');
   var XHR = ns.require('xhr');
-  var Errors = ns.require('errors');
-
-  function determineHttpStatusError(status) {
-    var message = 'Cannot handle request due to server response';
-    var err = 'Unknown';
-
-    if (status === 500)
-      err = 'ServerFailure';
-
-    if (status === 401)
-      err = 'Authentication';
-
-    return new Errors[err](message);
-  }
 
   /**
    * Creates an (Web/Cal)Dav request.
@@ -85,19 +71,8 @@
           return callback(err);
         }
 
-        // handle the success case
-        if (xhr.status > 199 && xhr.status < 300) {
-          self.sax.close();
-          return self._processResult(req, callback);
-        }
-
-        // probable error cases
-        callback(
-          determineHttpStatusError(xhr.status),
-          xhr
-        );
-
-
+        self.sax.close();
+        return self._processResult(req, callback);
       });
 
       return req;
diff --git a/lib/caldav/xhr.js b/lib/caldav/xhr.js
index 6c8351f..42e0c32 100644
--- a/lib/caldav/xhr.js
+++ b/lib/caldav/xhr.js
@@ -3,6 +3,7 @@
 */
 (function(module, ns) {
   var Native;
+  var Errors = ns.require('errors');
 
   if (typeof(window) === 'undefined') {
     Native = require('xmlhttprequest').XMLHttpRequest;
@@ -10,6 +11,19 @@
     Native = window.XMLHttpRequest;
   }
 
+  function determineHttpStatusError(status) {
+    var message = 'Cannot handle request due to server response';
+    var err = 'Unknown';
+
+    if (status === 500)
+      err = 'ServerFailure';
+
+    if (status === 401)
+      err = 'Authentication';
+
+    return new Errors[err](message);
+  }
+
   /**
    * Creates a XHR wrapper.
    * Depending on the platform this is loaded
@@ -51,6 +65,7 @@
     password: null,
     url: null,
     streaming: true,
+    validateStatus: false,
 
     headers: {},
     data: null,
@@ -168,7 +183,18 @@
           }
 
           this.waiting = false;
-          callback(null, this.xhr);
+
+          if (
+            !this.validateStatus ||
+            (
+              this.xhr.status > 199 &&
+              this.xhr.status < 300
+            )
+          ) {
+            return callback(null, this.xhr);
+          }
+
+          callback(determineHttpStatusError(this.xhr.status), this.xhr);
         }
       }.bind(this));