title: JQuery Sizzle attributes being added from one server
body: <p>I have read the other questions and answers regarding what Sizzle is and what the attributes it adds to elements are, but none of them answer the question of <em>why</em> its happening.</p>
  
  <p>I have the following setup:</p>
  
  <p>HTML5 codebase using JQuery 1.10.2.</p>
  
  <p>3 webservers with the same code deployed to each.</p>
  
  <p>IE11, Chrome, Safari and Firefox.</p>
  
  <p>On Chrome, Safari and Firefox the website looks identical when served from all three servers.</p>
  
  <p>On IE11, the website looks identical when served from two of the three servers.</p>
  
  <p>The difference between IE11 with the content served from the two working servers and the one non-working server is that in the developer tools I see all of these Sizzle attributes on objects - but I cannot for the life of me work out whats causing it, why it would be different and why only on IE on one of the three servers.</p>
  
  <p>Any ideas?</p>