Optimizing WordPress Contact Form 7 plugin

by

Loading Contact Form 7 CSS and JavaScript files on pages with specific slugs only:

// Deregistering Contact Form 7 CSS files on all pages without a Contact form
add_action( 'wp_print_styles', 'universio_cf7_deregister_styles', 100 );
function universio_cf7_deregister_styles() {
    if ( ! is_page( array( 'contact', 'contact-us', 'feedback' ) ) ) {
        wp_deregister_style( 'contact-form-7' );
    }
}

// Deregistering Contact Form 7 JavaScript files on all pages without a Contact form
add_action( 'wp_print_scripts', 'universio_cf7_deregister_javascript', 100 );
function universio_cf7_deregister_javascript() {
    if ( ! is_page( array( 'contact', 'contact-us', 'feedback' ) ) ) {
        wp_deregister_script( 'contact-form-7' );
    }
}

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