Cross-Domain Data Posting: JsonP vs POST
Question:
Can data be posted via JsonP, or must it always be passed as a GET request in the query string, especially when coping with large data that exceeds query string capacity?
Answer:
Asynchronous JSONP POST Limitation:
Asynchronous POST requests across domains using JSONP are not feasible. The same-origin policy restricts such communication. JSONP's functionality relies on loading scripts from arbitrary domains using