1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross-origin-to-whom.window.js b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross-origin-to-whom.window.js
new file mode 100644
index 0000000000..a1e592d8f8
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/cross-origin-to-whom.window.js
@@ -0,0 +1,37 @@
+async_test(t => {
+  const frame = document.body.appendChild(document.createElement("iframe"));
+  frame.src = "support/document-with-embedded-svg.html";
+  const elements = {
+    "embed": ["getSVGDocument"],
+    "frame": ["contentDocument"],
+    "iframe": ["getSVGDocument", "contentDocument"],
+    "object": ["getSVGDocument", "contentDocument"]
+  };
+  function assert_apis(instance) {
+    const name = instance.localName;
+    let priorPossibleDocument = null;
+    elements[name].forEach(api => {
+      const possibleDocument = api == "getSVGDocument" ? instance[api]() : instance[api];
+      assert_not_equals(possibleDocument, null, `${name}.${api}`);
+      // This needs standardizing still
+      // assert_class_string(possibleDocument, "XMLDocument");
+
+      // Ensure getSVGDocument() and contentDocument if both available return the same
+      if (priorPossibleDocument === null) {
+        priorPossibleDocument = possibleDocument;
+      } else {
+        assert_equals(priorPossibleDocument, possibleDocument);
+      }
+    });
+  }
+  frame.onload = t.step_func_done(() => {
+    const instances = Object.keys(elements).map(element => frame.contentDocument.querySelector(element));
+    // Everything is same origin and same origin-domain, no sweat
+    instances.forEach(instance => assert_apis(instance));
+    // Make the current settings object cross origin-domain (SVG and its container are not affected)
+    document.domain = document.domain;
+    assert_equals(frame.contentDocument, null);
+    instances.forEach(instance => assert_apis(instance));
+  });
+  document.body.appendChild(frame);
+}, "Test embed/frame/iframe/object nested document APIs for same origin-domain and cross origin-domain current settings object");