// WebGL 1.0
module: {
    loaders: [
        {
            test: /\.(glsl|frag|vert)$/,
            loader: 'raw!glsl-strip-comments'
        }
    ]
}
 
// WebGL 2.0
module: {
    loaders: [
        {
            test: /\.(glsl|frag|vert)$/,
            loader: 'raw!glsl-strip-comments',
            query: {
                option: {
                    version: '300 es'
                }
            }
        }
    ]
}