diff --git a/background-fetch/resources/utils.js b/background-fetch/resources/utils.js
index dbe041941d093e..10895c3ccfc012 100644
--- a/background-fetch/resources/utils.js
+++ b/background-fetch/resources/utils.js
@@ -2,6 +2,15 @@
 
 let nextBackgroundFetchId = 0;
 
+function loadScript(path) {
+  let script = document.createElement('script');
+  let promise = new Promise(resolve => script.onload = resolve);
+  script.src = path;
+  script.async = false;
+  document.head.appendChild(script);
+  return promise;
+}
+
 // Waits for a single message received from a registered Service Worker.
 async function getMessageFromServiceWorker() {
   return new Promise(resolve => {
@@ -39,6 +48,13 @@ async function registerAndActivateServiceWorker(test, name) {
 // directory to register.
 function backgroundFetchTest(func, description, workerName = 'sw.js') {
   promise_test(async t => {
+    if (typeof test_driver === 'undefined') {
+      await loadScript('/resources/testdriver.js');
+      await loadScript('/resources/testdriver-vendor.js');
+    }
+
+    await test_driver.set_permission({name: 'background-fetch'}, 'granted');
+
     const serviceWorkerRegistration =
         await registerAndActivateServiceWorker(t, workerName);
     serviceWorkerRegistration.active.postMessage(null);