title: Charles SSL Proxy works for chrome but not for the apps
body: <p>I'm using Nexus 5X device running Android 7. I failed to setup the proxy using the recent instructions from Charles Proxy documentation. I installed certificate, but wifi settings or nugat are extended. I can set charles as a certificate but that won't let me connect to that wifi (authentication problem). So I leave it as "don't check correctness". I don't even know if that's relevant.</p>
  
  <p>The thing is when I try to sniff on my app https calls I see <code>SSLHandshake: Received fatal alert: certificate_unknown</code>
  However if I run a web client using chrome on the same device - I can read calls to the same api. </p>
  
  <p>The bottom line is it works for a browser but not for my app. I checked on other apps aswell. Same output.</p>
  
  <p>The reason I ask here is because maybe I have to add some unsafe client to my retrofit api setup - hopefully not.</p>