1 files changed, 21 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_import_global_worker.js b/js/xpconnect/tests/unit/test_import_global_worker.js
new file mode 100644
index 0000000000..16359a4da4
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_import_global_worker.js
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+add_task(async function testSharedInWorker() {
+  // Loading into shared global isn't allowed in worker.
+
+  let worker = new ChromeWorker("resource://test/import_shared_in_worker.js");
+  let { promise, resolve } = Promise.withResolvers();
+  worker.onmessage = event => {
+    resolve(event.data);
+  };
+  worker.postMessage("");
+
+  const result = await promise;
+
+  Assert.equal(result.caught1, true);
+  Assert.equal(result.caught2, true);
+  Assert.equal(result.caught3, true);
+  Assert.equal(result.caught4, true);
+});