I have simple golang REST api app on GAE. I'm using a gorilla mux router
and enabled CORS as below:
httpServer = &http.Server{
Addr: ":8080",
Handler: handlers.CORS(
handlers.AllowedOrigins([]string{"*"}),
handlers.AllowedHeaders([]string{"Authorization",
"Access-Control-Allow-Headers"}),
handlers.AllowedMethods([]string{"GET", "HEAD", "POST", "PUT", "DELETE",
"OPTIONS"}))(router),
ReadTimeout: timeout,
WriteTimeout: timeout,
MaxHeaderBytes: 1 << 20,
}
}
Checked it on local deploys and its works well. However on GAE it still
returns a CORS error as below:
No access control origin header is present.
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