title: Cache validator for Google Webfonts
body: <p>So I'm creating an ultra optimized site, and my page load speed with <a href="https://developers.google.com/speed/pagespeed/" rel="noreferrer">https://developers.google.com/speed/pagespeed/</a> is <strong>99 (out of 100)</strong>.</p>
  
  <p>The only thing keeping me away from full hundred is this:</p>
  
  <blockquote>
    <p>By specifying a cache validator - a Last-Modified or ETag header - you ensure that the validity of cached resources can efficiently be determined.</p>
  </blockquote>
  
  <p>What?! I don't know what should I do. How do I set a cache validator for google webfonts?</p>
  
  <p>I've the webfont like this: <code>&lt;link href='http://fonts.googleapis.com/css?family=Open+Sans:400,800' rel='stylesheet' type='text/css'&gt;</code>. </p>
  
  <p>I'm on ubuntu with apache2 if that matters.</p>
  
  <p>Downloading the webfont to server and using it from there drops the score to 96 so that won't help either.</p>