fix(electron): disable service worker in desktop runtime

apps/web/src/app/services/runtime-config.spec.ts

@@ -36,4 +36,42 @@ describe('runtime config helpers', () => {
         ).toBe(false);
         expect(shouldEnableServiceWorker(true, {} as Navigator)).toBe(false);
     });
+
+    it('disables service worker for Electron runtime', () => {
+        expect(
+            shouldEnableServiceWorker(
+                true,
+                { serviceWorker: {} } as Navigator,
+                {
+                    electronBridge: {},
+                    protocol: 'file:',
+                }
+            )
+        ).toBe(false);
+    });
+
+    it('disables service worker for Electron runtime on non-file origins', () => {
+        expect(
+            shouldEnableServiceWorker(
+                true,
+                { serviceWorker: {} } as Navigator,
+                {
+                    electronBridge: {},
+                    protocol: 'https:',
+                }
+            )
+        ).toBe(false);
+    });
+
+    it('disables service worker for file origins without an Electron bridge', () => {
+        expect(
+            shouldEnableServiceWorker(
+                true,
+                { serviceWorker: {} } as Navigator,
+                {
+                    protocol: 'file:',
+                }
+            )
+        ).toBe(false);
+    });
 });

apps/web/src/app/services/runtime-config.ts

@@ -19,9 +19,33 @@ export function getRuntimeBackendUrl(): string {
     );
 }
 
+export interface ServiceWorkerRuntimeContext {
+    readonly electronBridge?: unknown;
+    readonly protocol?: string;
+}
+
+function getDefaultServiceWorkerRuntimeContext(): ServiceWorkerRuntimeContext {
+    const browserWindow = globalThis.window as
+        | (Window & { electron?: unknown })
+        | undefined;
+
+    return {
+        electronBridge: browserWindow?.electron,
+        protocol:
+            browserWindow?.location?.protocol ?? globalThis.location?.protocol,
+    };
+}
+
 export function shouldEnableServiceWorker(
     production = AppConfig.production,
-    navigatorRef: Navigator | undefined = globalThis.navigator
+    navigatorRef: Navigator | undefined = globalThis.navigator,
+    runtimeContext = getDefaultServiceWorkerRuntimeContext()
 ): boolean {
-    return production && !!navigatorRef && 'serviceWorker' in navigatorRef;
+    return (
+        production &&
+        !!navigatorRef &&
+        'serviceWorker' in navigatorRef &&
+        !runtimeContext.electronBridge &&
+        runtimeContext.protocol !== 'file:'
+    );
 }