Integration error - Invalid JSON Response Received

Originally posted by Z - Mand Arya

Hello.

My addon activates just fine, and even gets the event details from the API; however, regardless of what I return (nothing, JSON, a full HTML page, or pieces of HTML) I get the following error in the modal window/iframe:

Invalid Response Received
Invalid JSON Response Received

I use Self hosted web service function and also try external integration too. Can you describe more about what kind JSON format need to return? can you give an example?

Thanks

See my response here: Invalid Response Received Invalid JSON Response Received