1, playback issues
Because the browser strategies (primarily to prevent all kinds of advertising consumption flow), and then the audio and video html5 routine is not automatically played.
Under the new policy, media content will automatically play under the following conditions:
Content is muted, or does not contain any audio (video only)
the user clicks or clicked during a browsing session to a location on the site
on a mobile device, if the user has added the site to the main screen
, according to media participation index, in on the desktop, if the user frequently played on the media website
Description Link https://sites.google.com/a/chromium.org/dev/audio-video/autoplay
Then after Google browser version 70, Google can not be used to authorize the Advanced Settings (here I really did not find).
Then use the Firefox browser, the client set - Privacy and security - after autoplay media, you can always automatically play.
This form of investment is suitable for the local screen.
If you reflect on the online project, the solution is:
based on radioDom.paused can determine whether the current media is played automatically, if not, can only guide the user interacts with the view before you can play (radioDom.play ()).