From 2c061e8cc237c66bc4da4469aebc86463e2ea0d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manolo=20Cant=C3=B3n?=
 <59761854+m-canton@users.noreply.github.com>
Date: Sat, 25 Jul 2026 05:33:19 +0200
Subject: [PATCH 1/2] Calls Action.onSettled with falsy response values

It calls Action.onSettled when response is not a redirect.
---
 src/data/action.ts | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/data/action.ts b/src/data/action.ts
index bf5eb5bd..7ddcff5a 100644
--- a/src/data/action.ts
+++ b/src/data/action.ts
@@ -427,12 +427,14 @@ function applyResponseMetadata(
   metadata: Response | undefined,
   navigate: Navigator,
   flightData?: Record<string, any>
-) {
+): Promise<boolean> {
+  let redirected = false;
   let keys: string[] | undefined;
   if (metadata) {
     if (metadata.headers.has("X-Revalidate"))
       keys = metadata.headers.get("X-Revalidate")!.split(",");
     if (metadata.headers.has("Location")) {
+      redirected = true;
       const locationUrl = metadata.headers.get("Location") || "/";
       if (locationUrl.startsWith("http")) {
         window.location.href = locationUrl;
@@ -447,6 +449,8 @@ function applyResponseMetadata(
   flightData && Object.keys(flightData).forEach(k => query.set(k, flightData[k]));
   // trigger revalidation
   revalidate(keys, false);
+
+  return redirected;
 }
 
 async function handleResponse(
@@ -482,7 +486,9 @@ async function handleResponse(
   // The transport consumer applies metadata before returning a server
   // function's unwrapped value. Do not treat that value as a second plain
   // action response and invalidate the freshly seeded query cache again.
-  if (!metadataHandled || metadata || flightData)
-    applyResponseMetadata(metadata, navigate, flightData);
-  return data != null ? { data } : undefined;
+  if (!metadataHandled || metadata || flightData) {
+    if (applyResponseMetadata(metadata, navigate, flightData)) 
+      return undefined;
+  }
+  return { data };
 }

From 63dae9a6b9606a19d95cfcbeba86129fc28aef43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manolo=20Cant=C3=B3n?=
 <59761854+m-canton@users.noreply.github.com>
Date: Sat, 25 Jul 2026 05:40:47 +0200
Subject: [PATCH 2/2] Fixes return type of applyResponseMetadata function

---
 src/data/action.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/data/action.ts b/src/data/action.ts
index 7ddcff5a..1fe1fd64 100644
--- a/src/data/action.ts
+++ b/src/data/action.ts
@@ -412,7 +412,7 @@ let flightApplications = 0;
 export function setupFlightDataConsumer(router: RouterContext) {
   return subscribeFlightData<Record<string, any>>((data, { response }) => {
     flightApplications++;
-    return applyResponseMetadata(response, router.navigatorFactory(), data);
+    applyResponseMetadata(response, router.navigatorFactory(), data);
   });
 }
 
@@ -427,7 +427,7 @@ function applyResponseMetadata(
   metadata: Response | undefined,
   navigate: Navigator,
   flightData?: Record<string, any>
-): Promise<boolean> {
+): boolean {
   let redirected = false;
   let keys: string[] | undefined;
   if (metadata) {