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      <title>WooCommerce 从插件缓存切换到 Nginx FastCGI Cache 后，购物车和结账直接失效</title>
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      <description>把一个生产环境的 WooCommerce 站点从 WP Rocket 等插件缓存切换到 Nginx FastCGI Cache 后，流量高峰时的响应表现出现明显差异，但购物车和结账流程直接失效。插件原本在应用层处理缓存，却无法高效应对真实流量冲击，而服务器层缓存直接绕过了 PHP 处理。迁移中暴露的动态内容冲突点，远超最初对性能提升的预期。 WooCommerce 店铺在促销活动或节假日</description>
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