fix(core): use existing upstream Cache-Control if present on upstre…

…am response (#2322)
serverless-nextjs · Jan 31, 2022 · 4f93ea7 · 4f93ea7
1 parent ca7f7f7
commit 4f93ea7
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/packages/libs/core/src/images/imageOptimizer.ts b/packages/libs/core/src/images/imageOptimizer.ts
@@ -257,6 +257,12 @@ export async function imageOptimizer(
     upstreamBuffer = Buffer.from(await upstreamRes.arrayBuffer());
     upstreamType = upstreamRes.headers.get("Content-Type") ?? undefined;
     maxAge = getMaxAge(upstreamRes.headers.get("Cache-Control") ?? undefined);
+    if (upstreamRes.headers.get("Cache-Control")) {
+      res.setHeader(
+          "Cache-Control",
+          upstreamRes.headers.get("Cache-Control") as string
+      );
+    }
   } else {
     let objectKey;
     try {