diff --git a/packages/playwright-core/src/server/chromium/crBrowser.ts b/packages/playwright-core/src/server/chromium/crBrowser.ts
index e287e4276b..c0373eb435 100644
--- a/packages/playwright-core/src/server/chromium/crBrowser.ts
+++ b/packages/playwright-core/src/server/chromium/crBrowser.ts
@@ -181,8 +181,6 @@ export class CRBrowser extends Browser {
       context.emit(CRBrowserContext.CREvents.ServiceWorker, serviceWorker);
       return;
     }
-
-    assert(false, 'Unknown target type: ' + targetInfo.type);
   }
 
   _onDetachedFromTarget(payload: Protocol.Target.detachFromTargetParameters) {