We are giving our students the "online text" assignment which they need to submit a code as an answer.
The code has Indentation and it's very important to keep it that way, so the teacher can edit the submission and correct the code normally.
But as the students save their submission the Indentation is gone and the order is ruin.

This issue happens also in the forums and other html text fomorats.

I'm adding 3 pics which describe the problem
Hope to find effective answer.

thanks in advance
Miki