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Apple/Safari issue playing background video on mobile device

I have a site with full screen background video using BigVideo.js. (http://dfcb.github.io/BigVideo.js/) On mobile devices, android is working great. However, on an apple device the video loads with a 'Play' button that you need to click which loads the video in a modal window over top of the site. Any ideas on how to make this behave like desktop/android devices where the video seamlessly plays in the background? Could there be an Apple app-driven event detecting video and forcing play in a modal?
Example HTML:
<div class="screen" data-video="vid/1-Statue.mp4">

Many mobile devices do not support video autoplay - the idea is to avoid users running up large mobile data bills. Last time I looked all the smaller iOS devices, i.e. iPhones did not.
There is a popular javascript library to detect browser features which includes a test for autoplay which may be useful for you:
https://github.com/Modernizr/Modernizr/blob/master/feature-detects/video/autoplay.js
Similarly, inline video is not supported on all Mobile devices - it is evolving so more devices do now but it is probably not a good idea to rely on it. Again, there is at least one open source library trying to address this on iPhone (inline video works on iPads last time I checked, as far as I recall):
https://github.com/newshorts/InlineVideo

Adobe Edge generated video with overlay, play on ios without full screen

I have an animation made in Adobe Edge, featuring an animated body with an overlay of a face, pulled via an URL parameter.
It works fine on web. However, on IOS a video can only be played full screen - and then the image overlay obviously doesn't show.
Does anyone know a solution of how I could make this work on IOS? Either some way to convert the video+overlay to a merged video, svg animation or something else? Or just play the video without fullscreen - but I don't think this is possible.

On iOS mobile devices videos played in Safari go full screen with no other elements available. There is no way to stop this behaviour in Safari. Videos can be made to play inline within a native app, but not Safari unfortunately.
on iOS tablet devices, videos can be played inline within Safari.
However,you mentioned that you've created the animation in Adobe Edge Animate? I'd be tempted to publish your animation as a web animation and use that where your video would be.

iphone6 to play video inline on Web page

I have seen on some websites when they are viewed on iPhone 6 the videos play inline rather than going to full screen in mobile safari, how is this achieved?

HTML5 <video> element is most likely how this is achieved. Cross-compatibility is something to think about, though, because older browsers won't support this object.

html video background, best cross browser/mobile solution?

I'm trying to get a video background on one of my web pages.
I've tried converting my video to several formats(ogg,mp4..etc) and testing a few plugins, however I cant seem to get video backgrounds to play on mobiles and some older browsers (firefox, IE7).
Does anyone know what the best way to do this would be to date?

Soundmanager 2 and iOS using from and to commands

This code is working on MacOs and not on iOS.
soundManager.setup({url:'soundmanager2/',onready:function(){var mySound=soundManager.createSound({id:'aSound',url:'soundmanager2/notes.mp3'});mySound.play({from:50000,to:52000});},ontimeout:function(){}});}
When I do not use the 'from' and 'to' commands it works fine on iOS... but I need audio sprite.
Any idea to fix that or another way to make audio sprite working with iOS ?
Thanks

You probably should be using something like Howler.js for audio sprites that work on mobile devices.
SoundManager uses HTML5 audio and a Flash fallback. You need to be using the Web Audio API for sound sprites on mobile (which Howler.js supports).