first commit

pma/js/dist/cross_framing_protection.js

@@ -0,0 +1,13 @@
+/**
+ * Conditionally included if framing is not allowed
+ */
+if (self === top) {
+  var styleElement = document.getElementById('cfs-style');
+  // check if styleElement has already been removed
+  // to avoid frequently reported js error
+  if (typeof styleElement !== 'undefined' && styleElement !== null) {
+    styleElement.parentNode.removeChild(styleElement);
+  }
+} else {
+  top.location = self.location;
+}