getResponseHeader

getResponseHeader

[1] Define get(All)ResponseHeader(s) in terms of Fetch ( (annevk著, )) https://github.com/whatwg/xhr/commit/ecce3904ace0dbe382a652ea1d8e29c7885fe8c4

[2] Stop using "combined value" (annevk著, ) https://github.com/whatwg/xhr/commit/0d4253c784d2b71ca5bf6648c67f95b82bb8b239