title: disable viewport zooming iOS 10+ safari?
body: <p>I've update my iPhone 6 plus to iOS 10 beta version and just found that in mobile safari, you can zoom any webpages by double tapping or pinching <strong>IGNORE</strong> the <code>user-scalable=no</code> code in the meta tag. I don't know whether it's a bug or feature. If it's considered as a feature, how do we disable viewport zooming iOS 10 safari ?</p>
  
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  <p>updated on iOS 11/12 release, iOS 11 and iOS 12 safari still DO <strong>NOT</strong> respect the <code>user-scalable=no</code> meta tag.</p>
  
  <p><a href="https://i.stack.imgur.com/uVrdO.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/uVrdO.gif" alt="mobile github site on Safari"></a></p>