How to remove MovieClip textures from TextureCache?

[Aymeric]

Hey, I'm looking for a way to clean up a Loader instance (and its content). I saw that I need to remove textures from the cache (maybe I need to do more things?), so I did (Haxe code) :

var cache = pixi.core.utils.Utils.TextureCache;

for (resource in Reflect.fields(loader.resources)) {

	var url = Reflect.field(loader.resources, resource).url;
	var texture = Reflect.field(cache, url);

	if (texture != null)
		pixi.core.textures.Texture.removeTextureFromCache(url);
}

It removes many textures, but if I enumerate my TextureCache content later, each frame of the sprite sheet is still there. Is there any way to do it via the spritesheet url ?