YouTube's search caches incomplete searches

If you want to search for “best cat video on the internet” you end up with a saved search list like this…

  • best cat video on the internet
  • best cat video on the int
  • best cat video on t
  • best cat vid
  • best ca

It needs to wait a little longer before caching, and/or cache of spaces, and/or cache of selecting a video.

Idealy, if the preceding search text is a left-substring of the current, then it should be replaced.