Maximum call stack size exceeded error after adding Google Analytic

After I add Google Analytic code to my website, I start getting this JavaScript error:

Maximum call stack size exceeded

It disappear when I removed Google Analytic code:

(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
          (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
          m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
          })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

          ga('create', 'my key', 'auto', {'name': 'newTracker'});
          ga('newTracker.send', 'pageview');