- A historical JavaScript technique for requesting data by loading a
scriptelement. JSONP was proposed in 2005 by Bob Ippolito. It enables sharing of data bypassing same-origin policy, which disallows running JavaScript code to read media DOM elements or XMLHttpRequest data fetched from outside the page’s originating site. JSONP is vulnerable to the data source replacing the innocuous function call with malicious code, which is why it has been superseded by cross-origin resource sharing in modern applications. ← Wikipedia
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