diff --git a/rhodecode/public/js/src/rhodecode/codemirror.js b/rhodecode/public/js/src/rhodecode/codemirror.js
--- a/rhodecode/public/js/src/rhodecode/codemirror.js
+++ b/rhodecode/public/js/src/rhodecode/codemirror.js
@@ -81,7 +81,8 @@ var CodeMirrorLoadUserHints = function(q
     triggerHints(userHintsCache[query]);
   })
   .fail(function(data, textStatus, xhr) {
-    alert("error processing request: " + textStatus);
+      alert("error processing request. \n" +
+            "Error code {0} ({1}).".format(data.status, data.statusText));
   });
 };
 
diff --git a/rhodecode/public/js/src/rhodecode/utils/ajax.js b/rhodecode/public/js/src/rhodecode/utils/ajax.js
--- a/rhodecode/public/js/src/rhodecode/utils/ajax.js
+++ b/rhodecode/public/js/src/rhodecode/utils/ajax.js
@@ -46,7 +46,8 @@ var ajaxGET = function(url, success, fai
     if (failure) {
       failure(data, textStatus, xhr);
     } else {
-      alert("error processing request: " + textStatus);
+      alert("Error processing request. \n" +
+            "Error code {0} ({1}).".format(data.status, data.statusText));
     }
   });
   return request;
@@ -63,7 +64,8 @@ var ajaxPOST = function(url, postData, s
     if (failure) {
       failure(data, textStatus, xhr);
     } else {
-      alert("error processing request: " + textStatus);
+      alert("Error processing request. \n" +
+            "Error code {0} ({1}).".format(data.status, data.statusText));
     }
   });
   return request;