Marshmallow

This article is about the Marshmallow release; there is a similar article for Lollipop.

i have develop application in asp.net net and make web app of my responsive website. my app is working fine on kitkat, Lollipop but not work on Marshmallow. when i press shortcut icon on my app screen goes black. no activity happen only on Marshmallow. on other android devices it work...

I need a video auto play in some part of my website ,but the video is not working in my android marshmallow.Give me some idea ,how can i fix it ,so that the video will play with page load .no extra event fire is required . Thank you ,any suggestion will be highly appreciated...