1 files changed, 24 insertions, 0 deletions
diff --git a/testing/web-platform/tests/workers/modules/resources/dynamic-import-script-block-cross-origin.js b/testing/web-platform/tests/workers/modules/resources/dynamic-import-script-block-cross-origin.js
new file mode 100644
index 0000000000..52ec530663
--- /dev/null
+++ b/testing/web-platform/tests/workers/modules/resources/dynamic-import-script-block-cross-origin.js
@@ -0,0 +1,24 @@
+const sourcePromise = new Promise(resolve => {
+  if ('DedicatedWorkerGlobalScope' in self &&
+      self instanceof DedicatedWorkerGlobalScope) {
+    self.onmessage = e => {
+      resolve(e.target);
+    };
+  } else if (
+      'SharedWorkerGlobalScope' in self &&
+      self instanceof SharedWorkerGlobalScope) {
+    self.onconnect = e => {
+      resolve(e.ports[0]);
+    };
+  }
+});
+
+const importedModulesPromise =
+  import('./export-block-cross-origin.js')
+    .then(module => module.importedModules)
+    .catch(() => ['ERROR']);
+
+Promise.all([sourcePromise, importedModulesPromise]).then(results => {
+  const [source, importedModules] = results;
+  source.postMessage(importedModules);
+});