signalR no element found error message

Question

On pages that I have signalR included I get the following error in firebug:

http://localhost:53604/signalr/signalr/negotiate?_=1352797361490
no element found

everything still works fine but just wanted to see if this will become an issue. thanks

Answer 1

Since you're using Firebug that means you're using Firefox. What transport are you using (if using Fiddler remember to turn Streaming on)? It should be: 1. Long Polling 2. Server Sent Events 3. WebSockets

If the transport is Long Polling then we probably have an issue in the underlying code(Firefox should prioritize WebSockets/SSE before LP).

However, if not then we have a content based issue. So that being said, what type of data are you retrieving from the server? Usually a no element found error comes from invalid markup.

Try stripping out all pieces of your application and see if you still get this error. AKA just a $.connection.hub.start().