Unity Z fighting webgl

im having problem with unity WEBGL Edition the game works fine when i build it to windows but look what happend when i uplaod it to HTML also im uploading it without compression since i get problem on loading if i don't do that.

the prblem : looks like there is Z fighting everywhere but the problem there is not it just a block inside bock but not same scale or position its fine for windows btw but this is webgl

you can try it or watch this 8 sec video so you understand the problem

TryGame Watch Video