java - javascript trim or endswith TypeError:undefined is not a function (Cordova Android iOS) -

a coworker on different machine has added following method our javascript application:

function setdomainurl(url) {   if (!url.trim().endswith("/")) {       url += "/";       loginvm.domainurl = url;   }   globals.setkeyvalue('domainurl', url);   $window.localstorage.setitem("domainurl", url); } 

when try running application, crashes after first line of method - "typeerror: undefined not function". debugged make sure 'url' string, ("http://www.google.com").

i on os x machine. crash related using different versions of java? pretty large cordova app has run fine until method added. should note see crash when compile android, not ios.