1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/resource-timing/resources/iframe-TAO-crossorigin-port.sub.html b/testing/web-platform/tests/resource-timing/resources/iframe-TAO-crossorigin-port.sub.html
new file mode 100644
index 0000000000..97d77fcc58
--- /dev/null
+++ b/testing/web-platform/tests/resource-timing/resources/iframe-TAO-crossorigin-port.sub.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script>
+    const url = '{{location[scheme]}}://{{host}}:{{ports[http][1]}}/resource-timing/resources/TAOResponse.py?tao=origin_port_{{ports[http][1]}}';
+    const observe = (list, observer) => {
+        const entry = list.getEntries()[0];
+        const sum = entry.redirectStart +
+                  entry.redirectEnd +
+                  entry.domainLookupStart +
+                  entry.domainLookupEnd +
+                  entry.connectStart +
+                  entry.connectEnd +
+                  entry.secureConnectionStart +
+                  entry.requestStart +
+                  entry.responseStart +
+                  entry.transferSize +
+                  entry.encodedBodySize +
+                  entry.decodedBodySize;
+
+        const result = sum == 0 ? 'PASS' : 'FAIL';
+        window.top.postMessage(result, '*');
+    }
+    let observer = new PerformanceObserver(observe);
+    observer.observe({ entryTypes: ["resource"] });
+    fetch(url).then(r => r.text());
+</script>
+</body>
+</html>
+
+