defaultHeaders :: [Header]
defaultHeaders =
  [ ("Access-Control-Allow-Origin" , "http://justus.science")
  , ("Access-Control-Allow-Methods", "POST")
  , ("Access-Control-Allow-Headers", "Content-Type")
  ]
defaultHeaders :: [Header]
defaultHeaders =
  [ ("Access-Control-Allow-Origin" , "http://justus.science")
  , ("Access-Control-Allow-Methods", "POST")
  , ("Access-Control-Allow-Headers", "Content-Type")
  ]
defaultHeaders =
  [ ("Access-Control-Allow-Origin" , "http://justus.science")
  , ("Access-Control-Allow-Methods", "POST")
  , ("Access-Control-Allow-Headers", "Content-Type")
  ]