Model displays black

Upon uploading the mtl file
newmtl unposedgament
ka 0.329412 0.223529 0.027451
kd 0.780392 0.568627 0.113725
ks 0.992157 0.941176 0.807843
illum 0
map_Ka unposedgament.jpg
map_Kd unposedgament.jpg
map_Ks unposedgament.jpg

I get a rendering in which my whole model is just black . no depth just black.

But using on meshjs.net i get depths and the object loads fine(though without textures and I cant figure out why)

i am using chrome web browser.