title: What is difference between httpS and http/2?
body: <p>I'm trying to understand what is the difference between HTTPS and http/2?</p>
  <p>If I'm going to build a Node.js/express app, what should I use?</p>
  <p>Can I use HTTPS with http/2?</p>
  <p>Maybe if I use HTTPS, I don't need http/2 because it's the same, or HTTPS use http/2 under the hood?</p>
  <p>I'm confused.</p>
  <p>Someone is linked to me &quot;difference between HTTP 1.1 and HTTP 2.0 [closed]&quot;, but I understand the difference between HTTP and HTTP2. I'm asking about HTTP<strong>S</strong> and HTTP/2</p>