title: Any change window#mouseOver got ignored?
body: <p><strong>window#mouseOver</strong> got ignored.
  When elementB got rendered, I add a <strong>mousemove</strong>  handler  to window object using capture flag.
  And in element A, the <strong>pointermove</strong> handler is registered before aboved action.</p>
  <p>When i move mouse around element A, only <strong>pointermove</strong> got fired.</p>
  <p>Any idea? I use capture option for mousemove handler onto window object.
  It should be always firing first. But now it's got ignored.
  In the codebase, it doesn't do removeListner in any place.
  Any idea will be appreciating.</p>
  <p>I'm working on a big project with NDA, could not share with the code.</p>
  <p><a href="https://i.stack.imgur.com/2E9nA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2E9nA.png" alt="enter image description here" /></a></p>