From 485edbdf4c7b781ac09b08de92764dae4a95e538 Mon Sep 17 00:00:00 2001
From: barri <mgl@gmail.com>
Date: Mon, 8 Jan 2024 18:08:39 +0800
Subject: [PATCH] Fix express server crash

---
 src/index.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 6ac15a0..e4746d1 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -245,7 +245,9 @@ async function createHttpServer(listenPort: number) {
       }
     } catch (err) {
       log(`V3 delta error: ${err.message}`);
-      res.sendStatus(400);
+      if (!res.headersSent && !res.writableEnded) {
+        res.sendStatus(400);
+      }
       // Remove building file
       if (buildingFile && fs.existsSync(buildingFile)) fs.rmSync(buildingFile);
     }
@@ -333,7 +335,9 @@ async function createHttpServer(listenPort: number) {
       }
     } catch (err) {
       log(`V2 delta error: ${err.message}`);
-      res.sendStatus(400);
+      if (!res.headersSent && !res.writableEnded) {
+        res.sendStatus(400);
+      }
       // Remove building file
       if (buildingFile && fs.existsSync(buildingFile)) fs.rmSync(buildingFile);
     }