What to do with obscure characters in a GET request response?

Question

AJAX

�/R�RrN��IMQ�M-��OQH*-��QHL.���S��
Here is what is actually issued when requesting body from a GET request, on nodejs
How to solve the problem? What is it connected with?

Answer 1

Due to the fact that somewhere the wrong encoding.
To decide, you need to find out exactly where it is wrong, and indicate the correct one, or convert it to the correct one.