Allowed origin documentation omit the protocol: https://

Without it the server refuse to work properly. The documentation need fixing or the server should accept origin without protocol

created by net/http.(*Server).Serve
/usr/local/go/src/net/http/server.go:2962 +0x35c
2020/09/04 11:57:37 http: panic serving 172.17.0.1:49540: runtime error: slice bounds out of range [:2] with length 0