I am getting a javascript error on firefox 3.5, when trying to call an ajax method.
Please find the error below:
XML Parsing Error: no element found
You need to send html document to the output (the output udates.svc in your case) . If you use ASP.NET, you could do the following:
Response.Clear();
Response.Write("");
Response.Write(" ");
Response.Write("");
Response.Write("your output");
Response.Write("");
Response.Write("");
Response.ContentType = "text/HTML";
Response.End();