From b31cfb5de6e3ccde1d60a694b6c57575cf2741e2 Mon Sep 17 00:00:00 2001
From: jhy <184825448@qq.com>
Date: Fri, 16 Oct 2026 23:12:53 +0800
Subject: [PATCH] fix: prevent caching retrieval history exports

---
 backend/app/api/routes/retrieval.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/backend/app/api/routes/retrieval.py b/backend/app/api/routes/retrieval.py
index 3af793d..c998180 100644
--- a/backend/app/api/routes/retrieval.py
+++ b/backend/app/api/routes/retrieval.py
@@ -42,6 +42,7 @@ def download_history(payload: ExportHistory, db: Session = Depends(get_db)):
         media_type="application/x-ndjson; charset=utf-8",
         headers={
             "Content-Disposition": f'attachment; filename="nalati-retrieval-{export_id}.jsonl"',
+            "Cache-Control": "no-store",
             "X-Records-SHA256": digest,
             "X-Content-Type-Options": "nosniff",
         },