From 5b0bf024994b418f19b1abbed7a2962cd907182f Mon Sep 17 00:00:00 2001
From: Gregor Lohaus <gregor.lohaus@8mylez.com>
Date: Wed, 8 Apr 2026 17:38:34 +0200
Subject: [PATCH] fix, h3 cant handle solid stream

---
 packages/start/src/server/handler.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/start/src/server/handler.ts b/packages/start/src/server/handler.ts
index 3b0609db9..c23745e95 100644
--- a/packages/start/src/server/handler.ts
+++ b/packages/start/src/server/handler.ts
@@ -118,8 +118,11 @@ export function createBaseHandler(
 
       // using TransformStream in dev can cause solid-start-dev-server to crash
       // when stream is cancelled
-      if (globalThis.USING_SOLID_START_DEV_SERVER) return stream;
-
+      if (globalThis.USING_SOLID_START_DEV_SERVER) {
+        const { writable, readable } = new TransformStream();
+        stream.pipeTo(writable);
+        return new Response(readable, { headers: { "content-type": "text/html" } });
+      }
       // returning stream directly breaks cloudflare workers
       const { writable, readable } = new TransformStream();
       stream.pipeTo(writable);