When programatically calling `.click()` on an element, the dispatched click event is `composed: false` when it should be true (https://github.com/w3c/webcomponents/issues/513). Repro: http://jsbin.com/majaran/edit?html,output
We don't compose an event dispatched by click() ever. We should fix that.
<rdar://problem/31341442>
*** Bug 176327 has been marked as a duplicate of this bug. ***
Created attachment 348049 [details] Fixes the bug
Committed r235337: <https://trac.webkit.org/changeset/235337>
Mass move bugs into the DOM component.