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From: "github-actions[bot]"
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Date: Mon, 27 Apr 2026 16:18:14 +0000
Subject: [PATCH] =?UTF-8?q?fix(hotdocs):=20SSR=20fetch=20=E5=8A=A0=20Invol?=
 =?UTF-8?q?utionHell-SSR=20UA=20=E8=AE=A9=20CF=20=E6=94=BE=E8=A1=8C?=
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故障
首页右侧 "Hot This Week / 本周最热" 一直显示 "暂无数据"。
直接 curl 后端 /analytics/top-docs 是 200 + 5 条数据正常。

根因
其他 SSR fetcher（fetchProfile / events / feed）都带
"InvolutionHell-SSR/1.0 (+https://involutionhell.com)" UA，匹配 CF Custom
Rule 跳过 Bot Fight。HotDocsPreview 之前没加 header，Vercel runner 默认
"node" UA 不匹配规则，按 IP 信誉被拦回 403/empty → catch 返 [] → "暂无数据"。

本 PR
跟其他 SSR fetcher 完全对齐，加 accept + user-agent header。
---
 app/components/HotDocsPreview.tsx | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/app/components/HotDocsPreview.tsx b/app/components/HotDocsPreview.tsx
index 61f6700..b055be8 100644
--- a/app/components/HotDocsPreview.tsx
+++ b/app/components/HotDocsPreview.tsx
@@ -20,7 +20,17 @@ async function fetchTopDocs(): Promise<TopDocDto[]> {
   try {
     const res = await fetch(
       `${backendUrl}/analytics/top-docs?window=7d&limit=5`,
-      { next: { revalidate: 300 } },
+      {
+        next: { revalidate: 300 },
+        // UA 必须带 "InvolutionHell-SSR" token，否则 Cloudflare Bot Fight Mode
+        // 会按 Vercel runner IP 信誉判定为 bot 拦截（CF Custom Rule 用这个
+        // token 识别"自己人"放行）。其他 SSR fetcher（fetchProfile / events /
+        // feed）都已经带，唯独本组件之前漏了导致首页 "本周最热" 一直空。
+        headers: {
+          accept: "application/json",
+          "user-agent": "InvolutionHell-SSR/1.0 (+https://involutionhell.com)",
+        },
+      },
     );
     if (!res.ok) return [];
     const json = await res.json();