1 files changed, 14 insertions, 0 deletions
diff --git a/testing/web-platform/tests/permissions-policy/resources/permissions-policy-serial-worker.js b/testing/web-platform/tests/permissions-policy/resources/permissions-policy-serial-worker.js
new file mode 100644
index 0000000000..59bb6787dd
--- /dev/null
+++ b/testing/web-platform/tests/permissions-policy/resources/permissions-policy-serial-worker.js
@@ -0,0 +1,14 @@
+'use strict';
+
+// Dedicated worker
+if (typeof postMessage === 'function') {
+  onmessage = event => {
+    switch(event.data.type) {
+      case 'ready':
+        navigator.serial.getPorts().then(
+            () => postMessage({ type: 'availability-result', enabled: true }),
+            error => postMessage ({ type: 'availability-result', enabled: false }));
+        break;
+    }
+  };
+}