Why doesn't jquery work in safari?

Question

JavaScript

Hello.

I make a POST request via AJAX, get a string, then replace the contents of the block with: On a PC, in mobile chrome, in the Yandex browser, everything works fine, but in Safari the string is not substituted. What could be the problem? UPD: Tested on Ipad 3 (IOS is very old, xs what) and on Iphone 7+ (latest update), the problem is the same
$('.handle').text(res['handle']);