Add a performance-timeline test making sure performance entries are n…

…ot clonable
web-platform-tests · Jul 24, 2019 · fedd74d · fedd74d
1 parent 99422b9
commit fedd74d
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diff --git a/performance-timeline/not-clonable.html b/performance-timeline/not-clonable.html
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+<!doctype html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+  const t = async_test("Test that a postMessage of a performance entry fails");
+  addEventListener("message", t.step_func_done(e => {
+    assert_equals(e.data, "PASS");
+  }));
+</script>
+<iframe src="resources/postmessage-entry.html"></iframe>
diff --git a/performance-timeline/resources/postmessage-entry.html b/performance-timeline/resources/postmessage-entry.html
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+<!doctype html>
+<script>
+addEventListener("load", () => {
+  const entry = performance.getEntriesByType("navigation")[0];
+  try {
+    window.top.postMessage(entry, "*");
+  } catch(error) {
+    if (error.name == "DataCloneError") {
+      window.top.postMessage("PASS", "*");
+    } else {
+      window.top.postMessage("FAIL - Wrong exception name: " + error.name, "*");
+    }
+  }
+});
+
+</script>