From bc1d2436b68e40b9ef23d6c01f1110b0760cf8da Mon Sep 17 00:00:00 2001
From: Victor Berchet <victor@suumit.com>
Date: Tue, 3 Jun 2025 13:01:57 +0200
Subject: [PATCH 1/2] Add the `routePreloadingBehavior` to the options of
 `defineCloudflareConfig`

---
 .changeset/weak-maps-dress.md         |  7 +++++++
 packages/cloudflare/src/api/config.ts | 21 +++++++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/weak-maps-dress.md

diff --git a/.changeset/weak-maps-dress.md b/.changeset/weak-maps-dress.md
new file mode 100644
index 00000000..5d6471fe
--- /dev/null
+++ b/.changeset/weak-maps-dress.md
@@ -0,0 +1,7 @@
+---
+"@opennextjs/cloudflare": minor
+---
+
+Add the `routePreloadingBehavior` to the options of `defineCloudflareConfig`.
+
+The default is set to "none" as other values might increase CPU usage on cold starts.
diff --git a/packages/cloudflare/src/api/config.ts b/packages/cloudflare/src/api/config.ts
index aadc50d2..74ea61f6 100644
--- a/packages/cloudflare/src/api/config.ts
+++ b/packages/cloudflare/src/api/config.ts
@@ -3,6 +3,7 @@ import {
   BaseOverride,
   LazyLoadedOverride,
   OpenNextConfig as AwsOpenNextConfig,
+  type RoutePreloadingBehavior,
 } from "@opennextjs/aws/types/open-next";
 import type {
   CDNInvalidationHandler,
@@ -45,6 +46,15 @@ export type CloudflareOverrides = {
    * @default false
    */
   enableCacheInterception?: boolean;
+
+  /**
+   * Set the route preloading behavior.
+   *
+   * Using a value other than "none" can result in higher CPU usage on cold starts.
+   *
+   * @default "none"
+   */
+  routePreloadingBehavior?: RoutePreloadingBehavior;
 };
 
 /**
@@ -54,7 +64,14 @@ export type CloudflareOverrides = {
  * @returns the OpenNext configuration object
  */
 export function defineCloudflareConfig(config: CloudflareOverrides = {}): OpenNextConfig {
-  const { incrementalCache, tagCache, queue, cachePurge, enableCacheInterception = false } = config;
+  const {
+    incrementalCache,
+    tagCache,
+    queue,
+    cachePurge,
+    enableCacheInterception = false,
+    routePreloadingBehavior = "none",
+  } = config;
 
   return {
     default: {
@@ -67,7 +84,7 @@ export function defineCloudflareConfig(config: CloudflareOverrides = {}): OpenNe
         queue: resolveQueue(queue),
         cdnInvalidation: resolveCdnInvalidation(cachePurge),
       },
-      routePreloadingBehavior: "withWaitUntil",
+      routePreloadingBehavior,
     },
     // node:crypto is used to compute cache keys
     edgeExternals: ["node:crypto"],

From 16417c4a83884e0d5fabcf6b5f6bf830216e4d47 Mon Sep 17 00:00:00 2001
From: Victor Berchet <victor@suumit.com>
Date: Tue, 3 Jun 2025 13:04:54 +0200
Subject: [PATCH 2/2] fixup! formatting

---
 packages/cloudflare/src/api/config.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/packages/cloudflare/src/api/config.ts b/packages/cloudflare/src/api/config.ts
index 74ea61f6..c92365da 100644
--- a/packages/cloudflare/src/api/config.ts
+++ b/packages/cloudflare/src/api/config.ts
@@ -48,10 +48,8 @@ export type CloudflareOverrides = {
   enableCacheInterception?: boolean;
 
   /**
-   * Set the route preloading behavior.
-   *
+   * Route preloading behavior.
    * Using a value other than "none" can result in higher CPU usage on cold starts.
-   *
    * @default "none"
    */
   routePreloadingBehavior?: RoutePreloadingBehavior;