Update jsfiddles to have more helpful error messages when there is no connection when logging in.

jsfiddles/create_room_send_msg/demo.js

@@ -19,7 +19,12 @@ $('.login').live('click', function() {
             showLoggedIn(data);
         },
         error: function(err) {
-            alert(JSON.stringify($.parseJSON(err.responseText)));  
+            var errMsg = "To try this, you need a home server running!";
+            var errJson = $.parseJSON(err.responseText);
+            if (errJson) {
+                errMsg = JSON.stringify(errJson);   
+            }
+            alert(errMsg);  
         }
     }); 
 });

jsfiddles/event_stream/demo.js

@@ -58,7 +58,12 @@ $('.login').live('click', function() {
             showLoggedIn(data);
         },
         error: function(err) {
-            alert(JSON.stringify($.parseJSON(err.responseText)));  
+            var errMsg = "To try this, you need a home server running!";
+            var errJson = $.parseJSON(err.responseText);
+            if (errJson) {
+                errMsg = JSON.stringify(errJson);   
+            }
+            alert(errMsg);  
         }
     }); 
 });

jsfiddles/register_login/demo.js

@@ -20,7 +20,12 @@ $('.register').live('click', function() {
             showLoggedIn(data);
         },
         error: function(err) {
-            alert(JSON.stringify($.parseJSON(err.responseText)));  
+            var errMsg = "To try this, you need a home server running!";
+            var errJson = $.parseJSON(err.responseText);
+            if (errJson) {
+                errMsg = JSON.stringify(errJson);   
+            }
+            alert(errMsg);   
         }
     });
 });
@@ -36,7 +41,12 @@ var login = function(user, password) {
             showLoggedIn(data);
         },
         error: function(err) {
-            alert(JSON.stringify($.parseJSON(err.responseText)));  
+            var errMsg = "To try this, you need a home server running!";
+            var errJson = $.parseJSON(err.responseText);
+            if (errJson) {
+                errMsg = JSON.stringify(errJson);   
+            }
+            alert(errMsg);  
         }
     });  
 };

jsfiddles/room_memberships/demo.js

@@ -28,7 +28,12 @@ $('.login').live('click', function() {
             showLoggedIn(data);
         },
         error: function(err) {
-            alert(JSON.stringify($.parseJSON(err.responseText)));  
+            var errMsg = "To try this, you need a home server running!";
+            var errJson = $.parseJSON(err.responseText);
+            if (errJson) {
+                errMsg = JSON.stringify(errJson);   
+            }
+            alert(errMsg); 
         }
     }); 
 });