SanitizeFlags.elm

{- This is what the runtime passes in -}
type alias UnsafeFlags =
    { browser : Maybe String
    , version : Maybe String
    , randomSeed : Int
    }

{- And this is what we want to work with -}
type alias Flags =
    { browser : String
    , version : String
    , randomSeed : Int
    }

sanitizeFlags : UnsafeFlags -> Flags
sanitizeFlags unsafeFlags =
    { unsafeFlags
        | browser = Maybe.withDefault "unknown" unsafeFlags.browser
        , version = Maybe.withDefault "unknown" unsafeFlags.version
    }