How to make a normal card in THREE.js?

I just tried applying the normal Ninja demo map to a cube in my scene using the following code - using the latest latest version of Three.js from the dev branch:

// common material parameters

var ambient = 0x050505, diffuse = 0x331100, specular = 0xffffff, shininess = 10, scale = 23;

// normal map shader

var shader = THREE.ShaderUtils.lib[ "normal" ];
var uniforms = THREE.UniformsUtils.clone( shader.uniforms );

uniforms[ "enableAO" ].value = true;
uniforms[ "enableDiffuse" ].value = false;
uniforms[ "enableSpecular" ].value = false;
uniforms[ "enableReflection" ].value = true;

uniforms[ "tNormal" ].texture = THREE.ImageUtils.loadTexture( "normal.jpg" );
uniforms[ "tAO" ].texture = THREE.ImageUtils.loadTexture( "ao.jpg" );

uniforms[ "tDisplacement" ].texture = THREE.ImageUtils.loadTexture( "displacement.jpg" );
uniforms[ "uDisplacementBias" ].value = - 0.428408 * scale;
uniforms[ "uDisplacementScale" ].value = 2.436143 * scale;

uniforms[ "uDiffuseColor" ].value.setHex( diffuse );
uniforms[ "uSpecularColor" ].value.setHex( specular );
uniforms[ "uAmbientColor" ].value.setHex( ambient );

uniforms[ "uShininess" ].value = shininess;

uniforms[ "tCube" ].texture = reflectionCube;
uniforms[ "uReflectivity" ].value = 0.1;

uniforms[ "uDiffuseColor" ].value.convertGammaToLinear();
uniforms[ "uSpecularColor" ].value.convertGammaToLinear();
uniforms[ "uAmbientColor" ].value.convertGammaToLinear();


var parameters = { fragmentShader: shader.fragmentShader, vertexShader: shader.vertexShader, uniforms: uniforms, lights: true, fog: false };
var displacementMaterial = new THREE.ShaderMaterial( parameters );

/*
var diamond = new THREE.Diamond({
    material: bumpmapMaterial
});
*/

var diamond = new THREE.Mesh(
    new THREE.CubeGeometry(50, 50, 50),
    displacementMaterial
);

However, I get the following WebGL error in Chrome:

GL_INVALID_OPERATION : glDrawXXX: attempt to access out of range vertices

In Firefox, I do not get this error, but the cube did not appear either. Using standard color MeshLambertMaterial, everything works fine. Therefore, there is a conflict with ShaderMaterial. If I use the latest version of Three.js from the MASTER branch, this will not improve the situation - the same error will occur.

Any idea why this might be the case, and what I need to change to make it work?