Changes in cordova ( www | Staging/www ) not reflected on iOS simulator

Meteor 1.3 latest + Cordova iOS Simulator

I have problem with updating iOS 9.3 Simulator with changes in ( www | Staging/www ) meteor project /public folder.
My source code ( i use Polymer ) located in scripts on /public folder. Each time I update it, I synchronize it with Cordova.
All data seems to be correct and app starts just fine, but in Safari debugger I see it uses old code.

Both XCode project clean/rebuild and cordova clear / cordova prepare ios / cordova build ios --target=“iPhone-6s” keeps app same data. And only way to update app is to remove/reinstall it.

Any ideas how to speed up development / hints for working with iOS Simulator welcomed!