Ajax提交之后，Method从POST变成GET

https://developer.aliyun.com/ask/68268?spm=a2c6h.13159736

https://blog.csdn.net/uzizi/article/details/80489480

http://www.365jz.com/article/24337

https://www.cnblogs.com/diyunpeng/p/8395398.html

https://www.cnblogs.com/wuguanglin/p/redirect.html

https://blog.csdn.net/jhgdike/article/details/49902673

 https://xhyangdali.github.io/2017/12/12/Jsonp-method-not-post/