Парсинг на клиенте

let req = (url, selector, target) => fetch('https://cors-anywhere.herokuapp.com/' + url) 
  .then(r => r.text()) 
  .then(r => { 
    let tmp = document.createElement('div'); 
    tmp.innerHTML = r; 
    console.log(r) 
    tmp.innerHTML = tmp.querySelector(selector).innerHTML; 
    document.querySelector(target).appendChild(tmp); 
  }); 
 
let url = 'https://ru.stackoverflow.com/'; 
 
req( 
  url,  
  '#question-mini-list h3 a',  
  '#one' 
);

<div id="one" style="color:red"></div>