Recently, WeChat has been experiencing some problems, such as WeChat official account authorization, redirect_ The URI parameter is wrong, but many articles on the Internet can’t be explained clearly. They have been revised over and over again, but they still can’t.

The callback in WeChat official account can only be a full domain name, such as your visit. http://www.xx.com/authorize Authentication, but callback to fill in www.xx.com And then the request parameter is HTTP% 3A% 2F% 2 fwww.xx.com%2fauthorize , URLEncode is required