PWAMP is a WordPress solution for both lightning fast load time of AMP pages and first load cache-enabled of PWA pages.
Twenty Seventeen theme demo: https://twentyseventeen.flexplat.com/?amp=on
Twenty Sixteen theme demo: https://twentysixteen.flexplat.com/?amp=on
Twenty Fifteen theme demo: https://twentyfifteen.flexplat.com/?amp=on
Download from WordPress: https://wordpress.org/plugins/pwamp/
Download from GitHub: https://github.com/rickey29/pwamp
Question: How to make web browser switch to AMP compliant pages?
A: Enter “https://yoursite.com/?amp=on” in your web browser address bar.
Question: How to make web browser switch to original theme pages?
A: Enter “https://yoursite.com/?amp=off” in your web browser address bar.