There are side effects using script amp in standard html5 pages?
My idea is to use amp-iframe to show some related content, also in web pages and not only in amp pages.<
I haven't seen side effects yet of a nonamp/amp hybrid page. I'm currently using https://cdn.ampproject.org/v0.js for img control (ex: lazy load) on a non amp page.
I'll guess this is not the type of bad coding that Google will result in a rank penalty.
My nonamp page has:
Images didn't show up on Blu windows 8 phone. Suspect amp script at fault. Images do show up on Android smartphone.