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<?php
/**
 * WooCommerce Extra Feature
 * --------------------------
 * Remove WooCommerce lightbox for mobiles.
 *
 */
function woo_remove_lightbox_for_mobiles() {
  
	if ( wp_is_mobile() ) { // Place your own conditions here
		
    // Styles
	  wp_dequeue_style( 'woocommerce_prettyPhoto_css' );
	
	  // Javascripts
	  wp_dequeue_script( 'prettyPhoto' );
	  wp_dequeue_script( 'prettyPhoto-init' );
	
	} // endif
}

add_action( 'wp_enqueue_scripts', 'woo_remove_lightbox_for_mobiles', 99 );