Why does the encoding change when inserting html through a script?

Question

JavaScript

There is a script, it adds a link namely:

var links = '<a href="javascript:void();" onclick="submitForm(\'Y\'); return false;" id="ORDER_CONFIRM_BUTTON" class="fix-btn grey-btn order__btn checkout">Оформить заказ</a>';
$(".btn_box").html(links);

But on the front it looks like this

<a href="javascript:void();" onclick="submitForm('Y'); return false;" id="ORDER_CONFIRM_BUTTON" class="fix-btn grey-btn order__btn checkout">�������� �����</a>

Help)

Answer 1

Try to save js file in utf8 encoding

Answer 2

Doubtful JS, of course)
But if the link comes from the back, then look at what headers the response sends.