If you've a
http.ResponseWriter object and using it to directly write the response to the connection, the order in which you write different parts of response is very important:
// First write headers. wr.Header().Set("Content-Type", "text/plain; version=0.0.4") // Then set the status code. And yes, this is the function name for setting status code! wr.WriteHeader(http.StatusOK) // Then finally write the response body. wr.Write(byte("hello world"))
[!note] - Headers should be written first. If any extra header is set after calling
WriteHeaderit's a no-op. - Body should be after
WriteHeader. Else it's a no-op.