1 files changed, 57 insertions, 0 deletions
diff --git a/testing/web-platform/tests/measure-memory/iframe.cross-site.https.window.js b/testing/web-platform/tests/measure-memory/iframe.cross-site.https.window.js
new file mode 100644
index 0000000000..a4c50a5687
--- /dev/null
+++ b/testing/web-platform/tests/measure-memory/iframe.cross-site.https.window.js
@@ -0,0 +1,57 @@
+// META: script=/common/get-host-info.sub.js
+// META: script=./resources/checker.js
+// META: script=./resources/common.js
+// META: timeout=long
+'use strict';
+
+promise_test(async testCase => {
+  assert_true(self.crossOriginIsolated);
+
+  const {iframes, windows} = await build([
+    {
+      id: 'cross-site-1',
+      children: [
+        {
+          id: 'same-origin-2',
+        },
+        {
+          id: 'cross-origin-3',
+        },
+        {
+          id: 'cross-site-4',
+        }
+      ],
+    },
+  ]);
+  try {
+    const result = await performance.measureUserAgentSpecificMemory();
+    checkMeasureMemory(result, [
+      {
+        url: window.location.href,
+        scope: 'Window',
+        container: null,
+      },
+      {
+        url: 'cross-origin-url',
+        scope: 'cross-origin-aggregated',
+        container: {
+          id: 'cross-site-1',
+          src: iframes['cross-site-1'].src,
+        },
+      },
+      {
+        url: windows['same-origin-2'].location.href,
+        scope: 'Window',
+        container: {
+          id: 'cross-site-1',
+          src: iframes['cross-site-1'].src,
+        },
+      },
+    ]);
+  } catch (error) {
+    if (!(error instanceof DOMException)) {
+      throw error;
+    }
+    assert_equals(error.name, 'SecurityError');
+  }
+}, 'performance.measureUserAgentSpecificMemory URLs within a cross-site iframe.');