$.post and json encoding

$.post and json encoding

Hello to all sorry for my bad English.
We illustrate my problem sending the data via $.posts and I get the json using php

  1.  json_encode($dati,JSON_UNESCAPED_UNICODE))
the data that I get is as follows 

  1. {"errore":"","alternative":"单恋日记中
  2. 的少女片恋の日記少
  3. 女Machiboto KitariMegane Danshi TokushuuThe girl in the diary 
  4. of unrequited love"}

The javascript that sends the request and processes it is this
  1. $("#parse").click(function(){
  2.                     var search = $("#dataurlparse").val();
  3.                     $.post("../libs/parse.php",{dataUrl: search},function(data){
  4.                         if(data.errore != '')
  5.                             $.prompt(data.errore);
  6.                         else{
  7.                             $("#name_originale").val(data.alternative);
  8.                         }
  9.                     },"json");
  10.                 });

Received the data I enter in the input alternatives but the character is not converted and remains in the form json. You have already faced such a problem? how it can be solved?