title: Applying `position: fixed` to `body` makes it lose the scrollbars
body: <p>I'm trying something, where I apply <code>position: fixed</code> to the <code>body</code> tag of a webpage. Then I proceed to apply all the sides (top, bottom, left, right) to 0 so that it covers all the viewport.</p>
  
  <p>My expectation was that it would be virtually the same as not having added the fixed position at all, but now I don't get any scrollbars to move the page. If I apply <code>overflow: scroll</code>, dummy disabled scrollbars appear, and not the real ones that can get me to the bottom of the page.</p>
  
  <p>I'm trying all this stuff for an extension. That's why I want to move the <code>body</code> tag.</p>
  
  <p>Note: this also happens if I apply all the styling on the <code>html</code> tag.</p>