I\'ve been searching around for this answer for a while but I\'m not really getting anywhere. My question is regarding a webview inside of a chrome application on a computer
It supports html5 fullscreen from version 43, you can use fullscreen permission API: See event-permissionrequest and FullscreenPermissionRequest. Basically, you have to "allow()" the permission, sth like:
webview.addEventListener('permissionrequest', function(e) {
if (e.permission === 'fullscreen') {
e.request.allow();
}
});