GENERAL_HEADERS constant

List<String> const GENERAL_HEADERS = const [CACHE_CONTROL, CONNECTION, DATE, PRAGMA, TRAILER, TRANSFER_ENCODING, UPGRADE, VIA, WARNING]

Implementation 

static const GENERAL_HEADERS = const [
  CACHE_CONTROL,
  CONNECTION,
  DATE,
  PRAGMA,
  TRAILER,
  TRANSFER_ENCODING,
  UPGRADE,
  VIA,
  WARNING
]