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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=393269
+-->
+<head>
+  <title>Test for Bug 393269</title>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=393269">Mozilla Bug 393269</a>
+<iframe id="ifr"></iframe>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+(function () {
+    /** Test for Bug 393269 **/
+    var doc = $("ifr").contentDocument;
+    is("UTF-8", doc.characterSet, "control, getting a property");
+    doc.open();
+    try {
+        is("UTF-8", doc.characterSet,
+           "can get a property after 1 document.open")
+    } catch (e) {
+        fail("Shouldn't have thrown: " + e);
+        return;
+    } finally {
+        doc.close();
+    }
+
+    doc.open();
+    try {
+        is("UTF-8", doc.characterSet,
+           "can get a property after 2 document.opens")
+    } catch (e) {
+        fail("Shouldn't have thrown: " + e);
+    } finally {
+        doc.close();
+    }
+})();
+</script>
+</pre>
+</body>
+</html>
+