Speculation Rules API：预取与预渲染的现代方案

概述Speculation Rules 通过在页面声明可预取/预渲染的目标，配合安全与资源约束，提升常见导航路径的响应性，适合电商、内容站与应用内多页流程。示例（已验证）<script type="speculationrules"> { "prerender": [{"source": "list", "urls": ["/item/123", "/item/456"]}], "prefetch": [{"eagerness": "moderate", "urls": ["/api/recs"]}] } </script> 建议避免敏感操作的预渲染；关注会话与权限校验对比导航路径的真实用户指标（INP/LCP）评估收益