1 files changed, 63 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/resources/send-header-page-script.mjs b/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/resources/send-header-page-script.mjs
new file mode 100644
index 0000000000..17b00684d6
--- /dev/null
+++ b/testing/web-platform/tests/html/browsers/origin/origin-keyed-agent-clusters/resources/send-header-page-script.mjs
@@ -0,0 +1,63 @@
+import { sendWasmModule } from "./helpers.mjs";
+
+// This is done for the window.open() case. For <iframe>s we use the
+// <iframe> element's load event instead.
+const usp = new URLSearchParams(location.search);
+if (usp.has("send-loaded-message")) {
+  opener.postMessage("loaded", "*");
+}
+
+window.onmessage = async (e) => {
+  // These could come from the parent, opener, or siblings.
+  if (e.data.constructor === WebAssembly.Module) {
+    e.source.postMessage("WebAssembly.Module message received", "*");
+  }
+
+  // These could come from the parent or opener.
+  if (e.data.command === "set document.domain") {
+    document.domain = e.data.newDocumentDomain;
+    e.source.postMessage("document.domain is set", "*");
+  } else if (e.data.command === "get originAgentCluster") {
+    e.source.postMessage(self.originAgentCluster, "*");
+  }
+
+  // These only come from the parent.
+  if (e.data.command === "send WASM module") {
+    const destinationFrameWindow = parent.frames[e.data.indexIntoParentFrameOfDestination];
+    const whatHappened = await sendWasmModule(destinationFrameWindow);
+    parent.postMessage(whatHappened, "*");
+  } else if (e.data.command === "access document") {
+    const destinationFrameWindow = parent.frames[e.data.indexIntoParentFrameOfDestination];
+    try {
+      destinationFrameWindow.document;
+      parent.postMessage("accessed document successfully", "*");
+    } catch (e) {
+      parent.postMessage(e.name, "*");
+    }
+  } else if (e.data.command === "access location.href") {
+    const destinationFrameWindow = parent.frames[e.data.indexIntoParentFrameOfDestination];
+    try {
+      destinationFrameWindow.location.href;
+      parent.postMessage("accessed location.href successfully", "*");
+    } catch (e) {
+      parent.postMessage(e.name, "*");
+    }
+  } else if (e.data.command === "access frameElement") {
+    if (frameElement === null) {
+      parent.postMessage("null", "*");
+    } else if (frameElement?.constructor?.name === "HTMLIFrameElement") {
+      parent.postMessage("frameElement accessed successfully", "*");
+    } else {
+      parent.postMessage("something wierd happened", "*");
+    }
+  }
+
+  // We could also receive e.data === "WebAssembly.Module message received",
+  // but that's handled by await sendWasmModule() above.
+};
+
+window.onmessageerror = e => {
+  e.source.postMessage("messageerror", "*");
+};
+
+document.body.textContent = location.href;