title: is there a way to implement promises in ie9+
body: <p>I m trying to implement <strong>native promise</strong> on <strong>IE9+</strong> and it seems that internet explorer does not Recognize the "Promise" class/object.
  I searched in <a href="http://caniuse.com/#search=Promise">http://caniuse.com/#search=Promise</a> and saw that <strong>IE</strong> don't have Promise object.
  But this is strange because <strong>jQuery</strong> and <strong>Angular</strong> works with promises and <strong>working in IE9+.</strong>
  Maybe they are implementing <strong>their own Promise??</strong> **
  Can i implement my own promise ?**</p>