feat(websocket): IOS14 compatibility due to unsupported BroadcastChannel

src/composables/broadcastChannelDef.ts

@@ -1,4 +1,17 @@
-export const toServer = new BroadcastChannel("toServer");
-export const toClient = new BroadcastChannel("toClient");
-export const toWebsocketCtrl = new BroadcastChannel("toWebsocketCtrl");
-export const toClientCtrl = new BroadcastChannel("toClientCtrl");
+// Define a fallback mock class only if BroadcastChannel is undefined
+const BC: typeof BroadcastChannel = typeof BroadcastChannel !== 'undefined'
+    ? BroadcastChannel
+    : class {
+        constructor(name: string) {
+            // no-op
+        }
+        postMessage(_: any) {}
+        close() {}
+        addEventListener(_: string, __: any) {}
+        removeEventListener(_: string, __: any) {}
+    } as unknown as typeof BroadcastChannel;
+
+export const toServer = new BC("toServer");
+export const toClient = new BC("toClient");
+export const toWebsocketCtrl = new BC("toWebsocketCtrl");
+export const toClientCtrl = new BC("toClientCtrl");

src/composables/websocket/websocketService.ts

@@ -127,7 +127,7 @@ class WebsocketClassic implements IWebsocketService{
 }
 
 export function getWebsocketService(): IWebsocketService {
-    if (typeof SharedWorker !== 'undefined') {
+    if (typeof SharedWorker !== 'undefined' && typeof localStorage !== 'undefined') {
         return WebsocketShared.getInstance();
     } else {
         return WebsocketClassic.getInstance();