Disable loadCSS from specific roles

What about something that uses hooks instead of the UI. I've committed the attached patch. Example of it in action. This is essentially what you need; disable loadCSS if an unaccounted for css file is there.

/**
 * Implements hook_advagg_mod_get_lists_alter().
 */
function CUSTOM_advagg_mod_get_lists_alter(&$lists, $js, $css) {
  if (!empty($lists[10])) {
    $no_defer_css = FALSE;
    foreach ($css as $key => $value) {
      if (strpos($key, '/admin_menu/admin_menu.css') !== FALSE) {
        $no_defer_css = TRUE;
        break;
      }
    }
    if ($no_defer_css === TRUE) {
      $lists[10] = 0;
    }
  }
}

Looks like an issue with the static cache; this should handle that situation.

Is this good enough for you or does something else need to be done?

Going to mark this as fixed