Index: _source/core/loader.js
===================================================================
--- _source/core/loader.js	(revision 4051)
+++ _source/core/loader.js	(working copy)
@@ -224,7 +224,12 @@
 						this.loadPending();
 				}
 				else
+				{
+					// Append this script to the list of loaded scripts.
+					this.loadedScripts.push( scriptName );
+
 					document.write( '<script src="' + scriptSrc + '" type="text/javascript"><\/script>' );
+				}
 			}
 		};
 	})();