Dynamic Keys?

[AtlantaJones]

Unless I'm doing something wrong, it doesn't look like component keys can be set dynamically via prop vars?

Here's what I'm trying:

<scroll-view>
  <template slot-scope="visibility">
    <headlines
      :key="scrollKey"
      :title="title"
      :heading="heading"
      :subhead="subhead"
      :visible="visibility.scrollKey"
    ></headlines>
  </template>
</scroll-view>

Where scrollKey is a prop on the parent component. It works fine if I hard-code a key, but I have these appearing multiple times on a page, and they're always nested, so I can't hard-code a key each time.