has been blocked by CORS policy: Method PUT/DELETE is not allowed by Access-Control-Allow-Methods in

问题描述：当前位置需要向 B 公司某个接口对接，更改数据，但是他的请求方式是 PUT/DELETE ，然后就出现了如下这个报错：

跟后端沟通，后端说设置了如下允许所有的请求方式，但是还是跨域报错

Access-Control-Allow-Methods: *

解决方式：后端把 Access-Control-Allow-Methods 重新设置了下，原因应该是这个字段在简单请求的的时候比如get/post用*或者不写都可以，但是当使用 PUT/DELETE 请求的时候，必须明确规定写出来

Access-Control-Allow-Methods: GET,POST,OPTIONS,PUT,DELETE

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has been blocked by CORS policy: Method PUT/DELETE is not allowed by Access-Control-Allow-Methods in

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