diff --git a/nextjs-start/auth-service-worker.js b/nextjs-start/auth-service-worker.js
index 220a6019..f5ef2ee6 100644
--- a/nextjs-start/auth-service-worker.js
+++ b/nextjs-start/auth-service-worker.js
@@ -36,9 +36,14 @@ self.addEventListener("fetch", (event) => {
     return;
   }
   if (pathname.startsWith("/_next/")) return;
-  // Don't add headers to non-get requests or those with an extension—this
+  // Don't add headers to GET/HEAD requests or those with an extension—this
   // helps with css, images, fonts, json, etc.
-  if (event.request.method === "GET" && pathname.includes(".")) return;
+  if (
+    (event.request.method === "GET" || event.request.method === "HEAD") &&
+    pathname.includes(".")
+  ) {
+    return;
+  }
   event.respondWith(fetchWithFirebaseHeaders(event.request));
 });
 
diff --git a/nextjs-start/idx-template.json b/nextjs-start/idx-template.json
index 60c6bcfa..fc9f4d3c 100644
--- a/nextjs-start/idx-template.json
+++ b/nextjs-start/idx-template.json
@@ -7,6 +7,5 @@
   "host": {
     "virtualization": true
   },
-  "params": [
-  ]
+  "params": []
 }