wp-includes/theme.php:3730Adds settings for the customize-loader script.
function _wp_customize_loader_settings() { $admin_origin = parse_url( admin_url() ); $home_origin = parse_url( home_url() ); $cross_domain = ( strtolower( $admin_origin['host'] ) !== strtolower( $home_origin['host'] ) ); $browser = array( 'mobile' => wp_is_mobile(), 'ios' => wp_is_mobile() && preg_match( '/iPad|iPod|iPhone/', $_SERVER['HTTP_USER_AGENT'] ), ); $settings = array( 'url' => esc_url( admin_url( 'customize.php' ) ), 'isCrossDomain' => $cross_domain, 'browser' => $browser, 'l10n' => array( 'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ), 'mainIframeTitle' => __( 'Customizer' ), ), ); $script = 'var _wpCustomizeLoaderSettings = ' . wp_json_encode( $settings, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) . ';'; $wp_scripts = wp_scripts(); $data = $wp_scripts->get_data( 'customize-loader', 'data' ); if ( $data ) { $script = "$data\n$script"; } $wp_scripts->add_data( 'customize-loader', 'data', $script );}Introduced in 3.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/theme.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.