Enable Edit CSS for Administrators in Multisite

[tracedef]

After giving an administrator all capabilities, including edit_css, admins are still unable to edit css via our theme at appearance > customize > custom css …. so only super admins have this access. Any ideas on how to enabled css editing for administrators? Thanks!

[Vladimir]

edit_css together with unfiltered_html are not allowed at WordPress core by default for WP multisite.

case 'edit_css':
case 'unfiltered_html':
	// Disallow unfiltered_html for all users, even admins and super admins.
	if ( defined( 'DISALLOW_UNFILTERED_HTML' ) && DISALLOW_UNFILTERED_HTML ) {
		$caps[] = 'do_not_allow';
	} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) {
		$caps[] = 'do_not_allow';

Workaround:
URE Pro should be network enabled.
Go to “Network Admin -> Settings -> User Role Editor -> Multisite” tab and turn ON ‘Enable “unfiltered_html” capability’ checkbox.

[tracedef]

The network activated workaround enabling unfiltered_html in multisite tab didn’t have any effect. Where does the first code you listed go? I tried functions.php to no avail.

[Vladimir]

Code belongs to wp-includes/capabilities.php

[tracedef]

Thank you. All of our sites break when I add that code to wp-includes/capabilities.php. Is there a special way to insert it? Not sure what I”m doing wrong. Also, this code would likely need to be replaced everytime we update wordpress right?

[tracedef]

Never mind, the following works in fuctions.php:

add_filter( 'map_meta_cap', 'multisite_custom_css_map_meta_cap', 20, 2 );
function multisite_custom_css_map_meta_cap( $caps, $cap ) {
	if ( 'edit_css' === $cap && is_multisite() ) {
		$caps = array( 'edit_theme_options' );
	}
	return $caps;
}

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