feat: use wss:// if https

crates/frontend/src/services/websocket.rs

@@ -15,8 +15,15 @@ pub struct WebsocketService {
 
 impl WebsocketService {
     pub fn connect() -> Self {
-        let hostname = web_sys::window().unwrap().location().hostname().unwrap();
-        let ws_addr = format!("ws://{hostname}:4000/ws");
+        let window = web_sys::window().expect("no global `window` exists");
+        let location = window.location();
+        let hostname = location.hostname().expect("should have a hostname");
+        let protocol = match location.protocol().expect("should have a protocol").as_str() {
+            "https:" => "wss",
+            _ => "ws",
+        };
+
+        let ws_addr = format!("{protocol}://{hostname}:4000/ws");
         let ws = WebSocket::open(&ws_addr).unwrap();
         log::info!("Opened websocket connection to {ws_addr}");