How to allow Cyrillic output on the page when returning json?

Question

Laravel

I return json like this:
return response()->json($res);
I get:

At the same time, Cyrillic is visible in DevTools.
How can I make them visible on the page itself?

Answer 1

$options = app('request')->header('accept-charset') == 'utf-8' ? JSON_UNESCAPED_UNICODE : null;

return response()->json($data, 200, $options);

Answer 2

Web services from root do not run for security reasons.
The unit explicitly specifies the user to run as.
What is the problem?