title: Issue in iOS while filling a form in iframe
body: <p>I have an iframe which contains a form. Everything works fine in desktop and android devices and also in iPads. But in case of iphone 8+ and iphone 7, iOS - 11.3, the moment I start typing inside any field - text field or textarea in this iframe, the page is scrolled to the bottom automatically, so the user is not able to see the data he/ she is entering in the field. This is happening for both Safari and chrome in iOS. iframe is initialised as follows:</p>
  
  <pre><code>&lt;iframe ng-src="myUrl" ng-if="model.seat.survey_url" width="100%" height="100%" border="0" style="border-style: none; height:100%;overflow:hidden;width: 100%;" scrolling="no"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>This iframe is loaded inside the bootstrap modal and angularjs has been used. </p>