Perhaps despite stopping the official WEBGL support inside the engine, I hope for your help. How can I remove the buttons below the app and make the final assembly responsive to full screen? If I remove buttons from HTML, then the application hangs on compilation, apparently there are some codes in jquery that prevent the application from loading without buttons. Packaging shipping does not remove buttons! Thanks you very much!
You can use html and css to hide everything. Try adding
<style>
button.btn.btn-primary {display: none;}
</style>
into your html page
and
div#warningDialog {display: none;}
under button.btn.btn-primary {display: none;} if you want to hide the warning.