Ionic 3 - inline video opens in fullscreen in native player on iOS 10

It actually takes two things and it DOES work on the iPhone:

Add this to config.xml

<preference name="AllowInlineMediaPlayback" value="true" />

And in the HTML you must include webkit-playsinline

<video webkit-playsinline playsinline autoplay muted loop><source src='vid/vid.mp4' type='video/mp4'></video>

Duplicate for

Phonegap iOS HTML5 Video Opens Player

credits to @a432511

Did you tried with the following in your config.xml

<preference name="AllowInlineMediaPlayback" value="true" />

Which Triggers the Native app to play in Inline. while coming to the HTML5 there is a intresting fact that was stated in Apple Developer Site

on iPhone and iPod touch, which are small screen devices, "Video is NOT presented within the Web Page"