From ff10c4a07aff3e47e8f7c8bdc786dabd702aa10d Mon Sep 17 00:00:00 2001
From: Simon Holthausen <simon.holthausen@vercel.com>
Date: Tue, 2 Sep 2025 16:39:34 +0200
Subject: [PATCH] fix: treat handle hook redirect as part of remote function
 call as json redirect

fixes #14212
---
 .changeset/shaggy-peas-dig.md              |  5 +++++
 packages/kit/src/runtime/server/remote.js  | 12 +++++++-----
 packages/kit/src/runtime/server/respond.js | 11 ++++++-----
 3 files changed, 18 insertions(+), 10 deletions(-)
 create mode 100644 .changeset/shaggy-peas-dig.md

diff --git a/.changeset/shaggy-peas-dig.md b/.changeset/shaggy-peas-dig.md
new file mode 100644
index 000000000000..ca30911fe156
--- /dev/null
+++ b/.changeset/shaggy-peas-dig.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fix: treat handle hook redirect as part of remote function call as json redirect
diff --git a/packages/kit/src/runtime/server/remote.js b/packages/kit/src/runtime/server/remote.js
index a09031d17a61..59804a8211d1 100644
--- a/packages/kit/src/runtime/server/remote.js
+++ b/packages/kit/src/runtime/server/remote.js
@@ -124,11 +124,13 @@ async function handle_remote_call_internal(event, state, options, manifest, id)
 		);
 	} catch (error) {
 		if (error instanceof Redirect) {
-			return json({
-				type: 'redirect',
-				location: error.location,
-				refreshes: await serialize_refreshes(form_client_refreshes ?? [])
-			});
+			return json(
+				/** @type {RemoteFunctionResponse} */ ({
+					type: 'redirect',
+					location: error.location,
+					refreshes: await serialize_refreshes(form_client_refreshes ?? [])
+				})
+			);
 		}
 
 		return json(
diff --git a/packages/kit/src/runtime/server/respond.js b/packages/kit/src/runtime/server/respond.js
index 2e97adaaf441..e162a0f894cc 100644
--- a/packages/kit/src/runtime/server/respond.js
+++ b/packages/kit/src/runtime/server/respond.js
@@ -505,11 +505,12 @@ export async function internal_respond(request, options, manifest, state) {
 		return response;
 	} catch (e) {
 		if (e instanceof Redirect) {
-			const response = is_data_request
-				? redirect_json_response(e)
-				: route?.page && is_action_json_request(event)
-					? action_json_redirect(e)
-					: redirect_response(e.status, e.location);
+			const response =
+				is_data_request || remote_id
+					? redirect_json_response(e)
+					: route?.page && is_action_json_request(event)
+						? action_json_redirect(e)
+						: redirect_response(e.status, e.location);
 			add_cookies_to_headers(response.headers, new_cookies.values());
 			return response;
 		}