websocket连接失败

Question

我不明白为什么无论我访问哪个网站，控制台都会出现以下错误。我没有写任何与 webSocket 有关的脚本，我对它知之甚少。重载文件从何而来？

reload.js:22 WebSocket connection to 'ws://127.0.0.1:8000//ws' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED
init @ reload.js:22
(anonymous) @ reload.js:65

** 在重载文件中 **

   socket = new WebSocket(address);
    socket.onmessage = (msg) => {
        reloadWindow(msg, data)
    };