Untrusted certificate? Telling apart three different TLS problems in Node

When a TLS check fails, a lot of tools stop at "certificate not trusted". That's true, but it doesn't tell anyone what to fix, and the fix is different depending on the cause: The certificate is self-signed. Nobody vouches for it. The fix is a certificate from a real CA. The server isn't sending its intermediate certificate. The certificate itself... Weiterlesen: Untrusted certificate? Telling apart three different TLS problems in …