用官方文档里的WebSocket 连不上服务器是为什么？小白求解
var ws = new WebSocket(“ws://echo.websocket.org”);
ws.onopen = function (event) {
console.log(“Send Text WS was opened.”);
};
ws.onmessage = function (event) {
console.log("response text msg: " + event.data);
};
ws.onerror = function (event) {
console.log(“Send Text fired an error”);
};
ws.onclose = function (event) {
console.log(“WebSocket instance closed.”);
};
setTimeout(function () {
if (ws.readyState === WebSocket.OPEN) {
ws.send(“Hello WebSocket, I’m a text message.”);
}
else {
console.log(“WebSocket instance wasn’t ready…”);
}
}, 3);
