Hi there I hope you can help me 
I want to build an website like https://www.tumblr.com/ but with videos in the background.
Now I started to build it in webflow with GitHub - alvarotrigo/fullPage.js: fullPage plugin by Alvaro Trigo. Create full screen pages fast and simple. The videos play in preview mode but if I publish the site (http://akquise-kastanienhof-startseite.webflow.io/) the videos dont start to play 
I tried to build a workaround with the HTML Embed instead of the Background Video tool and with an autoplay in the
Any idea out there? Thank you so much.