Cross-domain request method through jQuery+JSONP (detailed tutorial)

After understanding jsonp, everyone should also understand that jsonp is mainly used to obtain cross-domain data. Today we will discuss in detail how to apply jsonp to achieve cross-domain implementation in practice

　JSONP (JSON with Padding) is a "usage mode" of JSON that can be used to solve the problem of cross-domain data access in mainstream browsers. Due to the same-origin policy, generally speaking, web pages located at server1.example.com cannot communicate with servers other than server1.example.com, with the exception of the HTML

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