[1] [CITE[Hawk's W3 Laboratory : XML : XMLHttpRequestについて]] ([TIME[2009-01-04 12:58:40 +09:00]] 版) <http://web.archive.org/web/20060901145130/www.hawk.34sp.com/stdpls/xml/xmlhttprequest.html>

>Operaには(8.01現在)setRequestHeaderメソッドが実装されていません。そのためHTTPクライアントとしての機能は非常に制限されたものとなっています。 


[2] [CITE[297078 – setRequestHeader can be exploited using newline characters]]
( ([TIME[2012-03-25 11:18:56 +09:00]] 版))
<https://bugzilla.mozilla.org/show_bug.cgi?id=297078>

[3] [CITE@en[Remove outdated note from setRequestHeader()]]
([[ryoqun]]著, [TIME[2018-06-15 21:51:23 +09:00]])
<https://github.com/whatwg/xhr/commit/ce716e89d40e75205f315081a9fcf78f64690d26>

[4] [CITE@en[Can't locate the referenced part from a note · Issue #213 · whatwg/xhr]]
([TIME[2018-06-16 14:32:12 +09:00]])
<https://github.com/whatwg/xhr/issues/213>

[5] [CITE@en[Remove outdated note from setRequestHeader() by ryoqun · Pull Request #215 · whatwg/xhr]]
([TIME[2018-06-16 14:32:21 +09:00]])
<https://github.com/whatwg/xhr/pull/215>