[1] Add <link rel=serviceworker>+associated attributes (sideshowbarker著, 2017-02-16 04:52:40 +09:00) https://github.com/whatwg/html/commit/c5d4f5cbee270e81fd7ed49fd62ca2cd26741240

[2] Remove <link rel=serviceworker> for now (jakearchibald著, 2017-11-22 23:42:53 +09:00) https://github.com/whatwg/html/commit/52d09c920e75eec84c037958b7f9aaad84f860d0

[3] Removing link rel=serviceworker for now. by jakearchibald · Pull Request #3233 · whatwg/html (2018-03-20 14:56:08 +09:00) https://github.com/whatwg/html/pull/3233