Enable autoplay HTML5 video in chrome

In my project I need to autoplay a HTML5 video in the browser when the page is loaded. I have tried a several javascript solutions but none of them work. I read that the android browser blocks autoplay to prevent downloading a lot of data. Can be this blocking feature be turned off in browser/chrome/operation system settings? I cannot find any working solution for how to enable autoplay. I have searched plenty of stackoverflow posts and many other sites ... I am using android 4.1.1.