[1] Define get(All)ResponseHeader(s) in terms of Fetch ( (annevk著, 2016-06-07 23:16:42 +09:00)) https://github.com/whatwg/xhr/commit/ecce3904ace0dbe382a652ea1d8e29c7885fe8c4

[2] Stop using "combined value" (annevk著, 2018-11-27 23:18:25 +09:00) https://github.com/whatwg/xhr/commit/0d4253c784d2b71ca5bf6648c67f95b82bb8b239