[huhtenberg]

Refuses to verify sites that use LetsEncrypt certificates:

  Failed to fetch URL: Get "https://...": tls: failed to verify
  certificate: x509: certificate signed by unknown authority

[cmkr]

I know some sites serve incomplete cert chains (missing the intermediate). Browsers fix this automatically, Go doesn't. have your tested a site with broken cert chain? got a url to share? Would help me pin down the issue.

Thanks!