1 files changed, 28 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/message-channels/worker-post-after-close.any.js b/testing/web-platform/tests/webmessaging/message-channels/worker-post-after-close.any.js
new file mode 100644
index 0000000000..2de0c434de
--- /dev/null
+++ b/testing/web-platform/tests/webmessaging/message-channels/worker-post-after-close.any.js
@@ -0,0 +1,28 @@
+async_test(t => {
+  function workerCode() {
+    onmessage = function(e) {
+      close();
+      var mc = new MessageChannel();
+      mc.port1.onmessage = function() {
+        postMessage("message received!");
+      }
+      mc.port2.postMessage(42);
+      postMessage("done");
+    }
+  }
+
+  var workerBlob = new Blob([workerCode.toString() + ";workerCode();"], {type:"application/javascript"});
+
+  var w = new Worker(URL.createObjectURL(workerBlob));
+  w.postMessage('');
+  w.onmessage = function(e) {
+    if (e.data == "done") {
+      setTimeout(function() {
+        t.done();
+      }, 250);
+    } else {
+      assert_true(false, "A wrong message has been received!");
+    }
+  }
+}, 'MessageChannel/MessagePort should not work after a worker self.close()');
+