diff --git a/website/public/mockServiceWorker.js b/website/public/mockServiceWorker.js
index 279a3eee..671ec2cb 100644
--- a/website/public/mockServiceWorker.js
+++ b/website/public/mockServiceWorker.js
@@ -145,7 +145,7 @@ async function handleRequest(event, requestId) {
   // Ensure MSW is active and ready to handle the message, otherwise
   // this message will pend indefinitely.
   if (client && activeClientIds.has(client.id)) {
-    (async function () {
+    ;(async function () {
       const clonedResponse = response.clone()
       sendToClient(client, {
         type: 'RESPONSE',