Request header field xxx is not allowed by Access-Control-Allow-Headers in preflight respon
调试时发现低版本的WebView无法请求跨域接口
请求信息如下:
Request Method:OPTIONS
Status Code:200 OKAccess-Control-Allow-Headers:*
Access-Control-Allow-Methods:POST, GET, OPTIONS, PUT, DELETE
Access-Control-Allow-Origin:*
已经设置了 Access-Control-Allow-Headers:* 但是 WebView 依然报错 Request header field xxx is not allowed by Access-Control-Allow-Headers in preflight respon
原因是低版本 WebView 不支持通配符. Access-Control-Allow-Headers 改成实际用到的就可以了.
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