STL files dno't show

Make sure you refer the .STL file right.

The plugins adds https://www.yourdomain.com/uploads/

So you don’t have to.

Simple put
/2015/10/myfile.stl
or something.

I’m using it here for debugging:
https://www.flagsoft.com/cmswp/en/3d-printing/wrench-3d-printed/

I was not able to set background, it seems to be black by default.

(you can ignore this, how can I delete that post?)