REQUEST_HEADERS constant

List<String> const REQUEST_HEADERS = const [ACCEPT, ACCEPT_CHARSET, ACCEPT_ENCODING, ACCEPT_LANGUAGE, AUTHORIZATION, EXPECT, FROM, HOST, IF_MATCH, IF_MODIFIED_SINCE, IF_NONE_MATCH, IF_RANGE, IF_UNMODIFIED_SINCE, MAX_FORWARDS, PROXY_AUTHORIZATION, RANGE, REFERER, TE, USER_AGENT]

Implementation 

static const REQUEST_HEADERS = const [
  ACCEPT,
  ACCEPT_CHARSET,
  ACCEPT_ENCODING,
  ACCEPT_LANGUAGE,
  AUTHORIZATION,
  EXPECT,
  FROM,
  HOST,
  IF_MATCH,
  IF_MODIFIED_SINCE,
  IF_NONE_MATCH,
  IF_RANGE,
  IF_UNMODIFIED_SINCE,
  MAX_FORWARDS,
  PROXY_AUTHORIZATION,
  RANGE,
  REFERER,
  TE,
  USER_AGENT
]