Core frame updates, and throw a system error if the frame and page details dont match

load/frame-page.js

@@ -166,6 +166,10 @@ PageFrame.prototype.load = function(filename) {
 			this[SAVED_FRAME_ATTRS[property]] = load[SAVED_FRAME_ATTRS[property]];
 		}
 
+		// If the page doesnt match the filename, throw an error
+		if (this.page !== filename)
+			throw 'Frame doesnt match filename';
+
 	} catch (error) {
 		log(LOG_ERROR,'Frame error: '+error);