title: Sessions and concurrency and how they are related
body: <p>I'm building a PuppeteerCrawler and I have to login to a certain website. But the website doesn't allow for multiple browsers to be using the same account at the same time. From my understanding, the session is persisted to a single IP, but how can i make that session also be exclusive to an browser instance?</p>
  
  <p>I'm also using 10 input users to be rotated by the following function.</p>
  
  <pre><code>exports.authenticate = async (page) =&gt; {
      const  { users }  = await Apify.getInput();
      const user = Math.round(Math.random() * 10 ); 
  
      let isLogged = await loggedCheck(page);
  
      if (!isLogged) {
          log.debug(`Cookies from cache didn't work, trying to login..`);
          await page.type('input[name="email"]', users[user].username);
          await page.type('input[name="password"]', users[user].password);
          await page.click('input[name="submit"]');
          isLogged = await loggedCheck(page);
      }
  
      if (!isLogged) {
          throw new Error('Didn\'t work!');        
      }
  };
  </code></pre>