1 files changed, 46 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html
new file mode 100644
index 0000000000..3e65d91984
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_allow_script.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>HTML Test: iframe_sandbox_allow_scripts</title>
+<link rel="author" title="Intel" href="http://www.intel.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#attr-iframe-sandbox">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/#the-iframe-element">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<div id="log"></div>
+<script>
+  // Set up all our script stuff before the iframe starts loading, so we don't
+  // miss any messages from it.
+  var step1 = false;
+  var t = async_test("iframe_sandbox_allow_scripts");
+
+  setup({timeout:1000});
+  window.addEventListener("message", callback1, false);
+
+  function run() {
+    window.removeEventListener("message", callback1, false);
+    document.getElementById("testIframe").sandbox = "allow-scripts";
+    document.getElementById("testIframe").contentWindow.location.reload();
+    window.addEventListener("message", callback2, false);
+  }
+
+  function callback1(e) {
+    step1= !step1;
+  }
+
+  function callback2(e) {
+    t.step(function () {
+      assert_false(step1, "[allow-scripts] is not set.");
+      assert_equals(e.data, "Script executed", "[allow-scripts] is set.");
+    });
+    t.done();
+  }
+
+  // Make sure the iframe loads before we mess with it.
+  window.addEventListener("load", function() {
+    // The load event might fire before a message from the child comes in...
+    // Wait a bit to see if that message does come in.
+    setTimeout(run, 500);
+  });
+</script>
+<iframe id="testIframe" src="support/sandbox_allow_script.html" sandbox="allow-same-origin" style="display:none"></iframe>