1 files changed, 32 insertions, 0 deletions
diff --git a/dom/base/test/file_focus_design_mode_inner.html b/dom/base/test/file_focus_design_mode_inner.html
new file mode 100644
index 0000000000..43e24652ab
--- /dev/null
+++ b/dom/base/test/file_focus_design_mode_inner.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>activeElement design-mode inner document</title>
+</head>
+<body>
+<h1>Inner</h1>
+<script>
+let innerlog = "innerlog:";
+
+document.designmode = "on";
+
+window.onmessage = function(e) {
+  if (e.data == "focus") {
+    document.documentElement.focus();
+  } else if (e.data == "getlog") {
+    innerlog += "activeElement:" + document.activeElement.tagName + ",";
+    parent.postMessage(innerlog, "*");
+  }
+};
+
+window.onfocus = function() {
+  innerlog += "windowfocus,";
+};
+
+window.onblur = function() {
+  innerlog += "windowblur,";
+};
+</script>
+</body>
+</html>