ha_permissions/ui/dashboard/index.js

export default {
    isRendered: false,

    async display(){
        if(!this.isRendered){
            document.getElementById("dashboardLogout").addEventListener("click", ()=>{
                localStorage.setItem("loggedIn", "false");
                openPage("login");
                fetch("/logout", {
                    method: "GET",
                    headers: {"Content-Type": "application/json"}
                });
            });

            console.log(location.protocol);
            window.ws = new WebSocket(`${location.protocol === "https:" ? "wss" : "ws"}://${location.host}/ws`);
            ws.addEventListener("open", ()=>{
                ws.send("hello");
            });
        }
    }
}