From 4bcc249a9f34aaac59658ca626c828bd6dbb8046 Mon Sep 17 00:00:00 2001
From: Arsh <69170106+lilnasy@users.noreply.github.com>
Date: Wed, 14 Feb 2024 15:27:53 -0700
Subject: [PATCH] fix(dev): preload matched routes sequentially (#10116)

* fix(dev): preload matched routes sequentially

* add changeset
---
 .changeset/afraid-seals-tan.md          |  5 +++++
 packages/astro/src/prerender/routing.ts | 15 +++++++--------
 2 files changed, 12 insertions(+), 8 deletions(-)
 create mode 100644 .changeset/afraid-seals-tan.md

diff --git a/.changeset/afraid-seals-tan.md b/.changeset/afraid-seals-tan.md
new file mode 100644
index 000000000000..a40615e8d16d
--- /dev/null
+++ b/.changeset/afraid-seals-tan.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Fixes an issue where the dev server froze when typescript aliases were used.
diff --git a/packages/astro/src/prerender/routing.ts b/packages/astro/src/prerender/routing.ts
index 1c1b8382546a..29e02611e4e3 100644
--- a/packages/astro/src/prerender/routing.ts
+++ b/packages/astro/src/prerender/routing.ts
@@ -40,16 +40,16 @@ async function preloadAndSetPrerenderStatus({
 	matches,
 	settings,
 }: PreloadAndSetPrerenderStatusParams): Promise<PreloadAndSetPrerenderStatusResult[]> {
-	const preloaded = await Promise.all(
-		matches.map(async (route) => {
+	const preloaded = new Array<PreloadAndSetPrerenderStatusResult>
+		for (const route of matches) {
 			const filePath = new URL(`./${route.component}`, settings.config.root);
-
 			if (routeIsRedirect(route)) {
-				return {
+				preloaded.push({
 					preloadedComponent: RedirectComponentInstance,
 					route,
 					filePath,
-				};
+				});
+				continue;
 			}
 
 			const preloadedComponent = await preload({ pipeline, filePath });
@@ -64,9 +64,8 @@ async function preloadAndSetPrerenderStatus({
 				route.prerender = prerenderStatus;
 			}
 
-			return { preloadedComponent, route, filePath };
-		})
-	);
+			preloaded.push({ preloadedComponent, route, filePath });
+		}
 	return preloaded;
 }