diff --git a/ldf.js b/ldf.js
index 2a8d8de..a919363 100644
--- a/ldf.js
+++ b/ldf.js
@@ -8,6 +8,9 @@ var ldf = {
 	end: undefined,
 	hash: true,
 	nav: function (location) {
+		if (location.startsWith("javascript:")) {
+			return;
+		}
 		if (ldf.hash && !location.startsWith("#")) {
 			location = "#" + location;
 			if (location == "#/") {
@@ -39,7 +42,7 @@ var ldf = {
 			loc += document.location.search || "";
 		}
 		ldf.helpers.request(loc, function (succ, content) {
-			if (succ && ldf.notfound !== undefined) {
+			if (succ || ldf.notfound == undefined) {
 				ldf.change(selector, content);
 			} else {
 				ldf.change(selector, ldf.notfound);