850.html

<div id="widget-container"></div>

<script type="text/javascript">
  // First grab the `view` param from the query string, if it exists
  var reg = new RegExp( '[?&]' + 'view' + '=([^&#]*)', 'i' );
  var paramSearch = reg.exec(window.location.search);
  var param = paramSearch ? paramSearch[1] : ''; 

  // Then build the JS file
  var js = document.createElement("script");
  js.type = "text/javascript";
  js.src = "//getchant.com/widget/polling.min.js";

  // Then set the data-poll attribute based on the value from the query string
  js.setAttribute('data-poll', param);

  // Finally insert the JS file into the page. 
  document.getElementById("widget-container").appendChild(js);
</script>