From e4e9994ac67d9b051f25b7bb2899c05980d13aca Mon Sep 17 00:00:00 2001
From: Noste <83548733+Noooste@users.noreply.github.com>
Date: Mon, 17 Aug 2026 12:02:22 +0200
Subject: [PATCH] fix(backend): improve cache control headers for static file
 serving

Signed-off-by: Noste <83548733+Noooste@users.noreply.github.com>
---
 backend/internal/routes/routes.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/backend/internal/routes/routes.go b/backend/internal/routes/routes.go
index e6664d1..7d0c438 100644
--- a/backend/internal/routes/routes.go
+++ b/backend/internal/routes/routes.go
@@ -355,10 +355,15 @@ func SetupRoutes(
 			// Try to serve static files first
 			filePath := filepath.Join(cfg.Server.FrontendPath, path)
 			if info, err := os.Stat(filePath); err == nil && !info.IsDir() {
+				if strings.HasPrefix(path, "/assets/") {
+					c.Set(fiber.HeaderCacheControl, "public, max-age=31536000, immutable")
+				} else {
+					c.Set(fiber.HeaderCacheControl, "no-cache")
+				}
 				return c.SendFile(filePath)
 			}
 
-			// If no static file exists, serve index.html for SPA routing
+			c.Set(fiber.HeaderCacheControl, "no-cache")
 			indexPath := filepath.Join(cfg.Server.FrontendPath, "index.html")
 			return c.SendFile(indexPath)
 		})