title: The charles 4.5.4 shows 304 (Not Modified) status code
body: <p>I am trying to capture the responses of my iOS application through Charles web proxy tool (version 4.5.4). My Mac version is Catalina 10.15.1.
  After updating to the latest Charles proxy tool, for most of the API calls, I am getting 304 status code. I understand what 304 is, which is Not Modified https status. But it doesn't show the JSON response or at least I don't know how to see the response JSON.
  If it's 200 status code I can see the response in Charles. I have attached the screenshot as an example to show how it looks like.
  <a href="https://i.stack.imgur.com/rhRNw.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rhRNw.png" alt="enter image description here"></a></p>
  
  <p>As you can see, if the response are showing "=" it is 304 redirection and if it shows "{}" it is 200 response. Is it my Charles problem or should I check with my iOS application. Any pointers will be much appreciated as I rely on Charles for my development purpose a lot.</p>