title: Why do some request payloads have unreadble characters?
body: <p>Here is the example of a request payload on a website I visited:
  <a href="https://i.stack.imgur.com/Pcqyf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Pcqyf.png" alt="request payload example" /></a></p>
  <p>Here is the response payload for another website, using websockets instead of a POST request:</p>
  <p><a href="https://i.stack.imgur.com/KzVoF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KzVoF.png" alt="websocket response" /></a></p>
  <p>Why are the characters unreadable? How can I make the text readable?</p>