Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
++
++ /*!
++ \example sslechoserver
++ \title Secure WebSocket Echo Server
++ \examplecategory {Networking}
++ \ingroup qtwebsockets-examples
++ \brief A simple server to respond to clients over secure WebSockets (wss).
++
++ The Secure WebSocket Echo Server example shows how to use the QWebSocketServer
++ class to implement a simple echo server over secure sockets (wss). TLS support
++ is required for this example to work. It authenticates itself to the client
++ and, on success, can accept a message from the client, to which it responds.
++ For the sake of illustration, its response is simply a copy of the message
++ it was sent.
++
++ This server is configured with a self-signed certificate and key.
++ Unless the clients contacting this server is configured to trust that
++ certificate, which \l {Secure WebSocket Echo Client} does, they will reject
++ this server.
++
++ \image sslechoclient-html-example.webp Secure WebSocket Echo HTML Client
++
++ There is an HTML-based client as part of this example. But it will only
++ work either if the browser used supports the certificate as described above,
++ or if it ignores TLS errors for localhost addresses.
++
++ \sa {Secure WebSocket Echo Client}, {WebSocket Echo Server}
++ */