Flow

These are the expected event flows/sequences.

H11/H2

A typical HTTP/1 or HTTP/2 request with response with the connection specified to close on response.

        sequenceDiagram
  TCPServer->>H11/H2: RawData
  H11/H2->>HTTPStream: Request
  H11/H2->>HTTPStream: Body
  HTTPStream->>App:  http.request[more_body=True]
  H11/H2->>HTTPStream: EndBody
  HTTPStream->>App:  http.request[more_body=False]
  App->>HTTPStream: http.response.start
  App->>HTTPStream: http.response.body
  HTTPStream->>H11/H2: Response
  H11/H2->>TCPServer: RawData
  HTTPStream->>H11/H2: Body
  H11/H2->>TCPServer: RawData
  HTTPStream->>H11/H2: EndBody
  H11/H2->>TCPServer: RawData
  H11/H2->>HTTPStream: StreamClosed
  HTTPStream->>App: http.disconnect
  H11/H2->>TCPServer: Closed
    

H11 early client cancel

The flow as expected if the connection is closed before the server has the opportunity to respond.

        sequenceDiagram
  TCPServer->>H11/H2: RawData
  H11/H2->>HTTPStream: Request
  H11/H2->>HTTPStream: Body
  HTTPStream->>App:  http.request[more_body=True]
  TCPServer->>H11/H2: Closed
  H11/H2->>HTTPStream: StreamClosed
  HTTPStream->>App: http.disconnect