I've used Chrome for years. One of my favorite features is that once you've been to a site with a search, you can later type the site name and hit tab to search from the omnibox. For instance on Youtube:
A few months ago this stopped working for google images. Typing "images" and hitting tab results in it just going to the next item in the autocomplete.
A couple days ago this stopped working for Amazon.
How do I fix this?