fixes #8209 - redirects from actions don't honor the provided status …

…code.

packages/kit/src/runtime/server/page/index.js

@@ -62,7 +62,7 @@ export async function render_page(event, route, page, options, state, resolve_op
 			// (this also determines status code)
 			action_result = await handle_action_request(event, leaf_node.server);
 			if (action_result?.type === 'redirect') {
-				return redirect_response(303, action_result.location);
+				return redirect_response(action_result.status ?? 303, action_result.location);
 			}
 			if (action_result?.type === 'error') {
 				const error = action_result.error;

packages/kit/test/apps/basics/src/routes/actions/redirect/basic/+page.server.js

@@ -0,0 +1,15 @@
+import { redirect } from '@sveltejs/kit';
+
+/** @type {import('./$types').PageServerLoad} */
+export function load() {
+	return {
+		initial: 'initial'
+	};
+}
+
+/** @type {import('./$types').Actions} */
+export const actions = {
+	redirect_302: async () => {
+		throw redirect(302, '/actions/redirect/basic?redirected');
+	}
+};

packages/kit/test/apps/basics/src/routes/actions/redirect/basic/+page.svelte

@@ -0,0 +1,3 @@
+<form method="post" action="/actions/redirect/basic?/redirect_302">
+	<button id="submit">Submit</button>
+</form>

packages/kit/test/apps/basics/test/server.test.js

@@ -439,3 +439,18 @@ test.describe('Miscellaneous', () => {
 		expect(headers['cache-control'] || '').not.toContain('immutable');
 	});
 });
+
+test.describe('Proper redirect status code', () => {
+	test('Action redirect is correct when JS is disabled', async ({ page, baseURL, request }) => {
+		await page.goto('/actions/redirect/basic');
+		const respProm = page.waitForResponse((resp) =>
+			resp.url().includes('/actions/redirect/basic?redirected')
+		);
+		await page.locator('#submit').click();
+
+		const resp = await respProm;
+		const redirectedFrom = await resp.request().redirectedFrom().response();
+		expect(redirectedFrom.status()).toBe(302);
+		expect(redirectedFrom.headers()['location']).toEqual('/actions/redirect/basic?redirected');
+	});
+});