Ionic 3 and angular 4 animation not working

I have tried to implement angular 4 animations with ionic 3 .it is working fine when I run the app in the web browser(chrome) but when I tried to run in mobile device (android 4.4) animation is not working.please help.

Android 4.4 doesn’t support the Web Animations API, see here:

In order to support devices that don’t currently implement the WAAPI you need to make sure you include the polyfill, see here:

thank you can I include external js file in ionic 3 projects?

You can just install that as an npm package: npm install web-animations-js --save

Thank you so much joshmorony :grinning: