PhilippSchreiber

function ps_wp_prepare_attachment_for_js($response, $attachment, $meta) {
	
	if($response['type'] == 'image') {
		$image_src = wp_get_attachment_image_src( $response['id'], 'thumbnail' ); //Use any image size added to your wordpress installation
		if( is_array($image_src) ) {
			$response['url'] = $image_src[0];
		}
	}
	
	return $response;

jackgregory

add_action( 'woocommerce_before_add_to_cart_form', 'woocommerce_variations_sold_out_filter' );

function woocommerce_variations_sold_out_filter() {
	// disable and add "sold out" to product variations
	wc_enqueue_js( '
	var product_variations = $( "form.variations_form" ).data( "product_variations" );
        // dont disable with multiple drop-downs
        if ( product_variations && $( "form.variations_form" ).find( "select" ).length === 1 ) {
            var attribute_name = $( "form.variations_form" ).find( "select" ).attr( "name" );
            $.each( product_variations, function( key, value ) {