fitbit do not allow callback URLs with http anymore #163

diff --git a/gather_keys_oauth2.py b/gather_keys_oauth2.py
index 39a19f8..c021ce1 100755
--- a/gather_keys_oauth2.py
+++ b/gather_keys_oauth2.py
@@ -14,7 +14,7 @@ from oauthlib.oauth2.rfc6749.errors import MismatchingStateError, MissingTokenEr
 
 class OAuth2Server:
     def __init__(self, client_id, client_secret,
-                 redirect_uri='http://127.0.0.1:8080/'):
+                 redirect_uri='https://localhost:8080/'):
         """ Initialize the FitbitOauth2Client """
         self.success_html = """
             <h1>You are now authorized to access the Fitbit API!</h1>
@@ -42,8 +42,13 @@ class OAuth2Server:
 
         # Same with redirect_uri hostname and port.
         urlparams = urlparse(self.redirect_uri)
-        cherrypy.config.update({'server.socket_host': urlparams.hostname,
-                                'server.socket_port': urlparams.port})
+        cherrypy.config.update({
+            'server.socket_host': urlparams.hostname,
+            'server.socket_port': urlparams.port,
+            'server.ssl_module': 'builtin',
+            'server.ssl_certificate': 'cert.pem',
+            'server.ssl_private_key': 'privkey.pem'
+            })