How to solve the cross-domain problem of ajax

This time I will bring you how to solve the cross-domain problem of ajax and three ideas for solving the cross-domain problem of ajax. The following is a practical case, let’s take a look.

There are three main solutions to the ajax cross-domain problem:

1. Browser restrictions
Solution: Don’t let the browser make restrictions
Solution Method: By specifying parameters, the browser does not perform cross-domain verification
Evaluation: It is of little value and requires everyone to make changes, and the changes are client changes

2.XHR request
Solution: Don’t use )
Solution idea: (1) The callee modifies the code to support cross-domain (2) The caller hides cross-domain Solution idea: (1) The callee By modifying the returned information and adding some fields, the caller is allowed to call. At this time, as long as the browser cross-domain verification is passed, cross-domain is allowed
(2) Use the proxy and transfer through the specified url

I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

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