[1] Shadow: define Event's composedPath() (annevk著, ) https://github.com/whatwg/dom/commit/58b19e4aa89ab0c6ef998daa455dcbb189423cf8
[2] Shadow: adjust composedPath() when currentTarget is a Window object (hayatoito著, ) https://github.com/whatwg/dom/commit/2153769e1ecf55f2d202fd5c6f996023b34545e5
[3] Fix composedPath() once more (annevk著, ) https://github.com/whatwg/dom/commit/23ec6421f47ab629bd14dfc6d4910414dc443d0b
[4] composedPath() is wrong · Issue #684 · whatwg/dom () https://github.com/whatwg/dom/issues/684
[5] Fix composedPath() once more by annevk · Pull Request #696 · whatwg/dom () https://github.com/whatwg/dom/pull/696
[6] Fix composedPath() once more by annevk · Pull Request #699 · whatwg/dom () https://github.com/whatwg/dom/pull/699
[7] Fix composedPath() even more (emilio著, ) https://github.com/whatwg/dom/commit/37e62c0e4b132a95b861ba97f36b802643323a90
[8] Fix a small but important error in composedPath() by emilio · Pull Request #727 · whatwg/dom () https://github.com/whatwg/dom/pull/727