Texture packs on the web version, mobile.

[bioclassic23]

Same error as RealRoland, I am unsure of how to fix it on the mobile web client.

Is the method the same or different?

[ClassiCool]

The web version has no support for texture packs at all. What you have to do is, if you are playing on a server and you have personal realms, type in /os map texture (url). However, this texture pack will appear only in that realm and it will be seen to others.