[1] FirefoxでInsertAdjacent系メソッドを利用する - Archiva (2008-01-11 16:51:10 +09:00 版) <http://archiva.jp/web/javascript/insertAdjacent_with_firefox.html>

[3] IRC logs: freenode / #whatwg / 20140226 ( (2014-03-01 02:18:22 +09:00 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20140226#l-368>

[2] Import insertAdjacentHTML. · 42b0faa · whatwg/domparsing ( (2013-01-02 09:17:21 +09:00 版)) <https://github.com/whatwg/domparsing/commit/42b0faa43092496e04169fc2a4e9f5c25cfc7b4e>

[4] template.insertAdjacentHTML() not consider as a part of template.contant · Issue #3533 · whatwg/html (2018-03-23 02:11:44 +09:00) <https://github.com/whatwg/html/issues/3533>