From 8e40724cd3e315e0df703cce8d9f2cf7ab6cdc73 Mon Sep 17 00:00:00 2001
From: Artem Zakharchenko <kettanaito@gmail.com>
Date: Thu, 10 Oct 2024 19:09:36 +0200
Subject: [PATCH] fix(setupWorker): perform worker update in the background
 (#2311)

---
 .../start/utils/getWorkerInstance.ts          | 22 ++++++++++---------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/browser/setupWorker/start/utils/getWorkerInstance.ts b/src/browser/setupWorker/start/utils/getWorkerInstance.ts
index 05594426b..0a249977c 100644
--- a/src/browser/setupWorker/start/utils/getWorkerInstance.ts
+++ b/src/browser/setupWorker/start/utils/getWorkerInstance.ts
@@ -36,17 +36,19 @@ export const getWorkerInstance = async (
   const [existingRegistration] = mockRegistrations
 
   if (existingRegistration) {
-    // When the Service Worker is registered, update it and return the reference.
-    return existingRegistration.update().then(() => {
-      return [
-        getWorkerByRegistration(
-          existingRegistration,
-          absoluteWorkerUrl,
-          findWorker,
-        ),
+    // Schedule the worker update in the background.
+    // Update ensures the existing worker is up-to-date.
+    existingRegistration.update()
+
+    // Return the worker reference immediately.
+    return [
+      getWorkerByRegistration(
         existingRegistration,
-      ]
-    })
+        absoluteWorkerUrl,
+        findWorker,
+      ),
+      existingRegistration,
+    ]
   }
 
   // When the Service Worker wasn't found, register it anew and return the reference.