We have an app that uses SignalR to talk to scanner drivers locally that has been in production for a couple of years working on IE, Chrome and Firefox, which do not have a prob
Your request is missing the following attributes, adding which should solve the problem.
GET, POST, etc.application/json, etc. json, XML, etc. Also look at the following code snippet:
type:"POST",
contentType:"application/json; charset=utf-8",
dataType:"json"