defaults to HTML5 back in January 2015, but there are still countless YouTube embeds out there that are using Flash technology. BroadcastChannel API now allow one-to-many messaging between windows, tabs, iframes, web workers and service workers.Chrome 54 now support custom elements V1 spec allowing developers to create HTML tags and define their API and behavior in JavaScript.Google Chrome 54 was released on October 12, 2016.
