[1] Fix Issue 53 · w3c/uievents@dcb45bf (2015-11-19 16:15:49 +09:00 版) https://github.com/w3c/uievents/commit/dcb45bfa6c4185d474341078c8a515322f7ffc5b

[2] (before)Edit -> (before)Input, closes #87 · w3c/editing@a87f2b9 (2015-12-01 11:53:23 +09:00 版) https://github.com/w3c/editing/commit/a87f2b9c38891756f695067e614308af66abb8c2

[3] remove beforeinput for copy, see issue #135 (johanneswilm著, 2016-08-08 05:36:16 +09:00) https://github.com/w3c/editing/commit/eee72c655fd665c6bdea48ca219f7e72f550f9cf