From 4be8f82c214f99538eaa0fd0aac5a8f7a6e1dd6b Mon Sep 17 00:00:00 2001
From: Timo Glastra <timo@animo.id>
Date: Wed, 15 Jun 2022 11:24:53 +0200
Subject: [PATCH] fix(node): only send 500 if no headers sent yet (#857)

Signed-off-by: Timo Glastra <timo@animo.id>
---
 packages/node/src/transport/HttpInboundTransport.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/node/src/transport/HttpInboundTransport.ts b/packages/node/src/transport/HttpInboundTransport.ts
index d6ecd27910..a9c387a7ea 100644
--- a/packages/node/src/transport/HttpInboundTransport.ts
+++ b/packages/node/src/transport/HttpInboundTransport.ts
@@ -49,7 +49,10 @@ export class HttpInboundTransport implements InboundTransport {
         }
       } catch (error) {
         config.logger.error(`Error processing inbound message: ${error.message}`, error)
-        res.status(500).send('Error processing message')
+
+        if (!res.headersSent) {
+          res.status(500).send('Error processing message')
+        }
       } finally {
         transportService.removeSession(session)
       }