title: Prevent Tab Bar from cutting off WKWebView text
body: <p>Our UITabBar is cutting off the bottom of our WKWebView text.</p>
  
  <p>Our Storyboard view has a few labels at the top of the screen and a WKWebView set below those labels programatically.  It works great but you can't scroll to the end of the WKWebView to see the last line of the text.</p>
  
  <p>I believe this doesn't happen with UIWebView but that API is deprecated.</p>
  
  <p>I understood <code>automaticallyAdjustsScrollViewInsets</code> to be the solution but apparently <a href="https://stackoverflow.com/a/21302259/47281">that doesn't work</a> in this case.  </p>
  
  <p>Have tried setting <a href="https://stackoverflow.com/a/31428932/47281">Extend Edges \ Under Bottom Bars</a> to false on the Storyboard.  This comes close to solving the issue - the scrolling issue is resolved.  Only issue is the Tab Bar then changes color to a darker color and I can't seem to get that to revert to the default lighter grey metallic color.</p>
  
  <p>What is the correct way to do this?</p>