Can anyone explain what JSONP is, in layman terms? [duplicate]

Answer 1

I have found a useful article that also explains the topic quite clearly and easy language. Link is JSONP

Some of the worth noting points are:

1. JSONP pre-dates CORS.
2. It is a pseudo-standard way to retreive data from a different domain,
3. It has limited CORS features (only GET method)

Working is as follows: