elements loading as a squared x

a user loaded my new flarum site on mobile using chrome and samsung browser, both gave this error:

processor Is the path correct in config.php ? Specifically, this

'url' => 'https://forum.site.com',

This may be incorrect, and will often mean assets are not rendered

this is in the config file. where 'url' is my domain. there is no www. included. should there be?

),
'url' => 'http://url.com',
'paths' =>
array (
'api' => 'api',
'admin' => 'admin',
),
);

thanks

processor as long at that URL resolves correctly, then no.

You need to use the URL defined in config.php, and only that URL. Other URLs will result in icons not loading an API requests failing.

You should defined apache/nginx rewrites to redirect your users to the correct canonical url. Or you can use the Canonical Url extension