httprouter

System-generated error responses

While we’re on the topic of errors, I’d like to mention that in certain scenarios Go’s http.Server may still automatically generate and send plain-text HTTP responses. These scenarios include when:

• The HTTP request specifies an unsupported HTTP protocol version.
• The HTTP request contains a missing or invalid Host header, or multiple Host headers.
• The HTTP request contains an invalid header name or value.
• The HTTP request contains an unsupported Transfer-Encoding header.
• The size of the HTTP request headers exceeds the server’s MaxHeaderBytes setting.
• The client makes a HTTP request to a HTTPS server.