From 8b3606c3976d42fac23e2238fef99b3ceae10f28 Mon Sep 17 00:00:00 2001
From: David Lechner <david@pybricks.com>
Date: Thu, 28 Jan 2021 20:37:51 -0600
Subject: [PATCH] fix check for update button not showing

this happened when the app starts when it is already up to date
---
 src/serviceWorkerRegistration.ts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/serviceWorkerRegistration.ts b/src/serviceWorkerRegistration.ts
index bbeffa3e..b2323922 100644
--- a/src/serviceWorkerRegistration.ts
+++ b/src/serviceWorkerRegistration.ts
@@ -63,6 +63,13 @@ function registerValidSW(swUrl: string, config?: Config): void {
     navigator.serviceWorker
         .register(swUrl)
         .then((registration) => {
+            if (registration.active) {
+                // Execute callback
+                if (config && config.onSuccess) {
+                    config.onSuccess(registration);
+                }
+            }
+
             registration.onupdatefound = () => {
                 const installingWorker = registration.installing;
                 if (installingWorker == null) {