diff --git a/js/ProgressiveLoader.js b/js/ProgressiveLoader.js
index 0d46be0..4580ab2 100644
--- a/js/ProgressiveLoader.js
+++ b/js/ProgressiveLoader.js
@@ -124,7 +124,7 @@ var ProgressiveLoader = function(path, scene, materialCreator, transparentElemen
                         }
                         currentMesh = new THREE.Mesh(geo, material);
 
-                        if (transparentElements.indexOf(tmp.trim()) !== -1) {
+                        if (tmp && transparentElements.indexOf(tmp.trim()) !== -1) {
                             THREEx.Transparency.push(currentMesh);
                         } else {
                             currentMesh.raycastable = true;
@@ -164,6 +164,7 @@ var ProgressiveLoader = function(path, scene, materialCreator, transparentElemen
             }
 
             if (currentMesh) {
+                currentMesh.material.side = THREE.DoubleSide;
                 currentMesh.geometry.computeFaceNormals();
                 currentMesh.geometry.computeBoundingSphere();
                 currentMesh.geometry.groupsNeedUpdate = true;
diff --git a/socket.js b/socket.js
index aa97d33..e3e1202 100644
--- a/socket.js
+++ b/socket.js
@@ -48,7 +48,7 @@ module.exports = function(io) {
 
         socket.on('next', function() {
 
-            var bound = 1;
+            var bound = 100;
             var toSend = [];
             var elt;