first commit

pma/js/src/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;
+}