THREE.js: Errormessage "THREE.OBJLoader is not a constructor"
<p>I am just learning the use of three.js. It seems very okay, but now I have a problem, which I can't solve.</p>

<p>I want to load an OBJ-file, which I created in blender before. To do that, I am trying to use the THREE.OBJloader.
I copied the code from <a href="http://mamboleoo.be/learnThree/" rel="noreferrer">http://mamboleoo.be/learnThree/</a>, but I get the errormessage "THREE.OBJLoader is not a constructor" in line 32.</p>

<p>Everything else works fine: Adding a scene, adding a material, adding a cube, etc. </p>

<p>To make it easy, this is the code:</p>

<pre><code>var renderer, scene, camera, banana;
var ww = window.innerWidth,
wh = window.innerHeight;

function init(){

renderer = new THREE.WebGLRenderer({canvas : document.getElementById('scene')});
renderer.setSize(ww,wh);

scene = new THREE.Scene();

camera = new THREE.PerspectiveCamera(50,ww/wh, 0.1, 10000 );
camera.position.set(0,0,500);
scene.add(camera);

//Add a light in the scene
directionalLight = new THREE.DirectionalLight( 0xffffff, 0.8 );
directionalLight.position.set( 0, 0, 350 );
directionalLight.lookAt(new THREE.Vector3(0,0,0));
scene.add( directionalLight );

//Load the obj file
loadOBJ();
}

var loadOBJ = function(){

//Manager from ThreeJs to track a loader and its status
var manager = new THREE.LoadingManager();
//Loader for Obj from Three.js
var loader = new THREE.OBJLoader( manager );
//Launch loading of the obj file, addBananaInScene is the callback when it's ready 
loader.load( 'http://mamboleoo.be/learnThree/demos/banana.obj', addBananaInScene);

};

var addBananaInScene = function(object){
banana = object;
//Move the banana in the scene
banana.rotation.x = Math.PI/2;
banana.position.y = -200;
banana.position.z = 50;
//Go through all children of the loaded object and search for a Mesh
object.traverse( function ( child ) {
    //This allow us to check if the children is an instance of the Mesh constructor
    if(child instanceof THREE.Mesh){
        child.material.color = new THREE.Color(0X00FF00);
        //Sometimes there are some vertex normals missing in the .obj files, ThreeJs will compute them
        child.geometry.computeVertexNormals();
    }
});
//Add the 3D object in the scene
scene.add(banana);
render();
};


var render = function () {
requestAnimationFrame(render);

//Turn the banana
banana.rotation.z += .01;

renderer.render(scene, camera);
};

init();
</code></pre>

<p>I hope, someone has an idea, where this might come from.</p>

<p>Regards, Christian</p>