I am trying to add a background music to a web page that I build with google site. I wanted to have the music automatically play when user loads the page. I followed the steps in this youtube video. However, after I embedded the code produced by elfsight Background Music Widget, the music still does not play automatically; I have to click anywhere in the div where the script is embedded. What is wrong? I am not a front end developer so I might miss something obvious.

I tried to embed a script exported from elfsight Background Music widget to a google site, following a youtube video. I expect the google site automatically plays the background music whenever user loads the site.