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Somewhere in your config there's a 301 redirect (UHOH!) to localhost, either as a cloudflare page rule or a misconfiguration on your origin server. If you use chrome you can remove HSTS for your domain here: chrome://net-internals/#hsts , this should at least allow you to replicate the problem (just don't visit the https version or it'll be enabled again.)

  $ curl -v orchestrahq.com
  * About to connect() to orchestrahq.com port 80 (#0)
  *   Trying 104.27.137.19... connected
  > GET / HTTP/1.1
  > User-Agent: curl/7.22.0 (i686-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3
  > Host: orchestrahq.com
  > Accept: */*
  >
  < HTTP/1.1 301 Moved Permanently
  < Date: Wed, 06 Apr 2016 14:09:23 GMT
  < Content-Type: text/html; charset=utf-8
  < Transfer-Encoding: chunked
  < Connection: keep-alive
  < Set-Cookie: xxx
  < X-Frame-Options: SAMEORIGIN
  < Location: https://127.0.0.1:8008/
  < P3P: CP="ALL DSP COR PSAa PSDa OUR NOR ONL UNI COM NAV"
  < X-Content-Type-Options: nosniff
  < Server: cloudflare-nginx
  < CF-RAY: 28f5d13940ba0719-SJC