custom_content_width in HTML output

Hi,

in add_mobile_menu() there is a line

$htmls .= get_option(‘custom_content_width’);

As far as I understand, that line outputs the value of custom_content_width directly into the actual AMP HTML code (to be exact, the value is shown on the generated AMP page). Is there a reason for this behavior or is this just a “leftover” from a debug session?

Thanks,

Tim

https://wordpress.org/plugins/custom-amp-accelerated-mobile-pages/