仅使用JavaScript在产品页面上显示某些变体图片

Question

我已在Shopify商店上使用此代码来仅显示与客户选择的变色匹配的产品图像（唯一的变体选项是“颜色”）。但是在另一种产品上，当同时具有“字体”和“颜色”的变体选项时，我无法使其正常工作。有什么想法吗？

我曾尝试更改option_index，但这无济于事。实时页面为：https://www.palmettowoodshop.com/collections/featured/products/wallet

<script>
var thumbnails = jQuery('img[src*="/products/"]') /* All product images */
  .not('#related-products img')                   /* Except related products, thumbnails not clickable */
  .not('a[href^="/collections/"] img')            /* Except related products */
  .not('a[href^="/products/"] img')               /* Except mini-cart products */
  .not('header img')                              /* Except mini-cart products, thumbnails not clickable */
  .not('#drawer img')                             /* Except mini-cart products, thumbnails not clickable, in Simple theme. */
  .not(':first');                                 /* Except first one, i.e the main image */

var optionSelect; 
{% assign option_index = 0 %}  
{% for option in product.options %}
  {% if option == option_name %}
    {% assign option_index = forloop.index0 %}  
  {% endif %}
{% endfor %}

{% if product.options.size == 1 %}
  optionSelect = '.single-option-selector';
{% else %}
  optionSelect = 'label:contains({{ option_name }}) + .single-option-selector';   
{% endif %}

jQuery('form[action="/cart/add"]').on('change', optionSelect, function() {
  var optionValue = $(this).val();
  thumbnails.each(function() {
    var wrapper = $(this);
    while ( wrapper.parent().children().length === 1 ) {
      wrapper = wrapper.parent();
    }
    if ( jQuery(this).attr('alt') === optionValue ) {
      wrapper.show();
    }
    else {
      wrapper.hide();
    }
  });
});    
</script>