Abstract: In one example, a client and a server may communicate with each other using a control channel and a data channel. The control channel carries requests from the client to the server, and the data channel carries the server's response to these requests. Some requests submitted on the control channel may be assigned identifiers, so as to be addressable. A client may submit, over the control channel, a request to cancel previously-made requests. A cancelation request uses the identifiers associated with the previously-made requests to identify the request(s) to be canceled. The client may open the control and data channels by issuing POST and GET requests, respectively, to the server. Control channel communications may then be sent as part of the POST message, and data channel communications may be sent as responses to the GET request.

Abstract: In one example, a client and a server may communicate with each other using a control channel and a data channel. The control channel carries requests from the client to the server, and the data channel carries the server's response to these requests. Some requests submitted on the control channel may be assigned identifiers, so as to be addressable. A client may submit, over the control channel, a request to cancel previously-made requests. A cancelation request uses the identifiers associated with the previously-made requests to identify the request(s) to be canceled. The client may open the control and data channels by issuing POST and GET requests, respectively, to the server. Control channel communications may then be sent as part of the POST message, and data channel communications may be sent as responses to the GET request.