This is a very simply library that wraps superagent to provide JSONP support where required. The idea being that regardless of your environment, server, CORS-compliant browser, old broken browser, you can call
jsonget and get the data you need.
As per the name it is built to handle
GET requests only. Primarily, because if you are using JSONP you ain't going to be using anything but.
At this stage jsonget does not have any error detection for a failed script load, and in fact all that probably will be possible is to monitor for timeout errors. This will be investigated though.