From a2f4c3088a4f260fe93eab6919657b24c46cec20 Mon Sep 17 00:00:00 2001
From: FoxxMD <FoxxMD@users.noreply.github.com>
Date: Sun, 18 Jan 2026 16:39:01 +0000
Subject: [PATCH] fix(prometheus): Set content type to plain text #438

---
 src/backend/server/api.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/backend/server/api.ts b/src/backend/server/api.ts
index 3498445e..33d2180a 100644
--- a/src/backend/server/api.ts
+++ b/src/backend/server/api.ts
@@ -551,7 +551,10 @@ export const setupApi = (app: ExpressWithAsync, logger: Logger, appLoggerStream:
     app.getAsync('/api/metrics', async (req, res) => {
 
         const metricsString = await prom.register.metrics();
-        return res.status(200).send(metricsString);
+        return res
+        .status(200)
+        .set('Content-Type', 'text/plain')
+        .send(metricsString);
 
     });
 
-- 
2.51.2