1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/permissions-policy/resources/permissions-policy-idle-detection-worker.js b/testing/web-platform/tests/permissions-policy/resources/permissions-policy-idle-detection-worker.js
new file mode 100644
index 0000000000..0d348c72ae
--- /dev/null
+++ b/testing/web-platform/tests/permissions-policy/resources/permissions-policy-idle-detection-worker.js
@@ -0,0 +1,16 @@
+'use strict';
+
+// Dedicated worker
+if (typeof postMessage === 'function') {
+  onmessage = event => {
+    switch(event.data.type) {
+      case 'ready':
+        new IdleDetector().start().then(() => {
+          postMessage({ type: 'availability-result', enabled: true });
+        }, error => {
+          postMessage ({ type: 'availability-result', enabled: false });
+        });
+        break;
+    }
+  };
+}