[1] mouseenter and mouseleave events should not be composed (smaug著, 2018-08-23 01:06:06 +09:00) https://github.com/w3c/uievents/commit/6ddc097f8473c7e99fc100a7c3bda81dffce875f

[2] mouseenter and mouseleave events should not be composed, issue #208 by smaug---- · Pull Request #210 · w3c/uievents (2018-09-04 16:29:27 +09:00) https://github.com/w3c/uievents/pull/210