[1] [CITE@en[Add about:unicorn easter egg. · whatwg/fetch@de21fbc]]
([TIME[2015-04-01 12:05:13 +09:00]] 版)
<https://github.com/whatwg/fetch/commit/de21fbc2e20230a5d82398aecb329dfd979ce5e0>

[2] [CITE[Unicorn]]
([TIME[2011-11-24 01:02:42 +09:00]] 版)
<http://media.opera.com/media/press/2011/unicorn/>

[3] [CITE@en[CSS Expressive Generalizations and Gadgetry Level 1]]
([TIME[2015-04-02 12:05:44 +09:00]] 版)
<http://dev.w3.org/csswg/css-egg/>

[4] [CITE@en[Opera 11.60 beta debuts with double-rainbow support - Opera Software]]
([TIME[2015-04-02 15:18:27 +09:00]] 版)
<http://www.operasoftware.com/press/releases/desktop/opera-11.60-beta-debuts-with-double-rainbow-support>

[5] [CITE@en[Remove about:unicorn]]
([[annevk]]著, [TIME[2016-07-22 22:11:36 +09:00]])
<https://github.com/whatwg/fetch/commit/67e21272425498d26a8e75c3c9b7192099968ffe>

[6] 関連: [CODE[</sarcasm>]]