diff -r 7d95ace8c08f -r f53a7999ae7b client/js/paper-renderer.js
--- a/client/js/paper-renderer.js	Thu Jun 13 16:13:35 2013 +0200
+++ b/client/js/paper-renderer.js	Fri Jun 14 12:36:32 2013 +0200
@@ -962,6 +962,12 @@
         
     this.editor_$.find(".Rk-CloseX").click(closeEditor);
     
+    this.editor_$.find(".Rk-Edit-Goto").click(function() {
+        if (!_model.get("uri")) {
+            return false;
+        }
+    });
+    
     if (this.renderer.isEditable()) {
         
         var onFieldChange = Rkns._(function() {
@@ -972,6 +978,7 @@
                     };
                     if (_this.options.show_node_editor_uri) {
                         _data.uri = _this.editor_$.find(".Rk-Edit-URI").val();
+                        _this.editor_$.find(".Rk-Edit-Goto").attr("href",_data.uri || "#");
                     }
                     if (_this.options.show_node_editor_image) {
                         _data.image = _this.editor_$.find(".Rk-Edit-Image").val();
@@ -1146,6 +1153,11 @@
             paper.view.draw();
         };
     this.editor_$.find(".Rk-CloseX").click(closeEditor);
+    this.editor_$.find(".Rk-Edit-Goto").click(function() {
+        if (!_model.get("uri")) {
+            return false;
+        }
+    });
     
     if (this.renderer.isEditable()) {
         
@@ -1158,7 +1170,7 @@
                     if (_this.options.show_edge_editor_uri) {
                         _data.uri = _this.editor_$.find(".Rk-Edit-URI").val();
                     }
-                    _this.editor_$.find(".Rk-Edit-Goto").attr("href",_data.uri);
+                    _this.editor_$.find(".Rk-Edit-Goto").attr("href",_data.uri || "#");
                     _model.set(_data);
                     paper.view.draw();
                 } else {