From 06989f381706c8546edd1152a972575bfdbd5616 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Thu, 29 Jan 2026 18:43:18 -0500
Subject: [PATCH] explanatory comment

---
 packages/svelte/src/internal/server/renderer.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/svelte/src/internal/server/renderer.js b/packages/svelte/src/internal/server/renderer.js
index deddb4eddb..65f9bcae6a 100644
--- a/packages/svelte/src/internal/server/renderer.js
+++ b/packages/svelte/src/internal/server/renderer.js
@@ -163,6 +163,8 @@ export class Renderer {
 			promises.push(promise);
 		}
 
+		// prevent unhandled rejections, and attach the promise to the renderer instance
+		// so that rejections correctly cause rendering to fail
 		promise.catch(noop);
 		this.promise = promise;