错误日志：TypeError: ejs:82
    80|         <% } %>
    81| 
 >> 82|         <% const classifyToCheckId = productDetail.data.ancestors || String(productDetail.data.productClassifyId); %>
    83| 
    84|         <% const classifyToCheckName = productDetail.data.ancestorsName || productDetail.data.classifyName; %>
    85| 

Cannot read properties of undefined (reading 'ancestors')