react, fetch跨域请求返回的Response.ok==fase,但status是200

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fetch中如果是mode:“no-cors”,则可能会出现这个问题,

安装插件:

fetch的请求中就不必带mode:“no-cors”这句话了

参考:

https://stackoverflow.com/questions/35588699/response-to-preflight-request-doesnt-pass-access-control-check

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