Add config variables to generate url outside of request contexts

web/config.py

@@ -8,7 +8,9 @@ ROOT_DIR = os.path.abspath(os.path.dirname(__file__))
 
 class Config:
     ''' # Flask # '''
+    PREFERRED_URL_SCHEME = os.environ.get('PREFERRED_URL_SCHEME', 'http')
     SECRET_KEY = os.environ.get('SECRET_KEY', 'hard to guess string')
+    SERVER_NAME = os.environ.get('SERVER_NAME')
     SESSION_COOKIE_SECURE = \
         os.environ.get('SESSION_COOKIE_SECURE', 'false').lower() == 'true'