fix(redirects): attempt to get only params in dev mode

.changeset/famous-numbers-smell.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fixed an issue where configured redirects with dynamic routes did not work in dev mode.

packages/astro/src/core/render/params-and-props.ts

@@ -1,6 +1,7 @@
 import type { ComponentInstance, Params, Props, RouteData } from '../../@types/astro.js';
 import { AstroError, AstroErrorData } from '../errors/index.js';
 import type { Logger } from '../logger/core.js';
+import { routeIsRedirect } from '../redirects/index.js';
 import { getParams } from '../routing/params.js';
 import { RouteCache, callGetStaticPaths, findPathItemByKey } from './route-cache.js';
 
@@ -25,6 +26,10 @@ export async function getParamsAndProps(opts: GetParamsAndPropsOptions): Promise
 	// This is a dynamic route, start getting the params
 	const params = getRouteParams(route, pathname) ?? {};
 
+	if (routeIsRedirect(route)) {
+		return [params, {}]
+	}
+
 	validatePrerenderEndpointCollision(route, mod, params);
 
 	// During build, the route cache should already be populated.

packages/astro/test/fixtures/redirects/src/pages/more/[dynamic].astro

@@ -0,0 +1,8 @@
+---
+export function getStaticPaths() {
+  return [{ params: { dynamic:'hello' } }]
+}
+---
+{JSON.stringify(Astro.params)}
+
+<a href="/">home</a>

packages/astro/test/fixtures/redirects/src/pages/more/[dynamic]/[route].astro

@@ -0,0 +1,8 @@
+---
+export function getStaticPaths() {
+  return [{ params: { dynamic:'hello', route:'world' } }]
+}
+---
+{JSON.stringify(Astro.params)}
+
+<a href="/">home</a>

packages/astro/test/fixtures/redirects/src/pages/more/new/[...spread].astro

@@ -0,0 +1,8 @@
+---
+export function getStaticPaths() {
+  return [{ params: {spread:'welcome/world'} }]
+}
+---
+{JSON.stringify(Astro.params)}
+
+<a href="/">home</a>

packages/astro/test/redirects.test.js

@@ -9,7 +9,7 @@ describe('Astro.redirect', () => {
 	describe('output: "server"', () => {
 		before(async () => {
 			fixture = await loadFixture({
-				root: './fixtures/ssr-redirect/',
+				root: './fixtures/redirects/',
 				output: 'server',
 				adapter: testAdapter(),
 				redirects: {
@@ -66,7 +66,7 @@ describe('Astro.redirect', () => {
 			before(async () => {
 				process.env.STATIC_MODE = true;
 				fixture = await loadFixture({
-					root: './fixtures/ssr-redirect/',
+					root: './fixtures/redirects/',
 					output: 'static',
 					redirects: {
 						'/old': '/test',
@@ -78,6 +78,9 @@ describe('Astro.redirect', () => {
 							status: 302,
 							destination: '/test',
 						},
+						'/more/old/[dynamic]': '/more/[dynamic]',
+						'/more/old/[dynamic]/[route]': '/more/[dynamic]/[route]',
+						'/more/old/[...spread]': '/more/new/[...spread]',
 					},
 				});
 				await fixture.build();
@@ -149,6 +152,12 @@ describe('Astro.redirect', () => {
 				expect(html).to.include('http-equiv="refresh');
 				expect(html).to.include('url=/test');
 			});
+
+			it('falls back to spread rule when dynamic rules should not match', async () => {
+				const html = await fixture.readFile('/more/old/welcome/world/index.html');
+				expect(html).to.include('http-equiv="refresh');
+				expect(html).to.include('url=/more/new/welcome/world');
+			});
 		});
 
 		describe('dev', () => {
@@ -157,10 +166,13 @@ describe('Astro.redirect', () => {
 			before(async () => {
 				process.env.STATIC_MODE = true;
 				fixture = await loadFixture({
-					root: './fixtures/ssr-redirect/',
+					root: './fixtures/redirects/',
 					output: 'static',
 					redirects: {
 						'/one': '/',
+						'/more/old/[dynamic]': '/more/[dynamic]',
+						'/more/old/[dynamic]/[route]': '/more/[dynamic]/[route]',
+						'/more/old/[...spread]': '/more/new/[...spread]',
 					},
 				});
 				devServer = await fixture.startDevServer();
@@ -170,11 +182,27 @@ describe('Astro.redirect', () => {
 				await devServer.stop();
 			});
 
-			it('Returns 301', async () => {
+			it('performs simple redirects', async () => {
 				let res = await fixture.fetch('/one', {
 					redirect: 'manual',
 				});
 				expect(res.status).to.equal(301);
+				expect(res.headers.get('Location')).to.equal('/');
+			});
+
+			it('performs dynamic redirects', async () => {
+				const response = await fixture.fetch('/more/old/hello', { redirect: 'manual' });
+				expect(response.headers.get('Location')).to.equal('/more/hello');
+			});
+
+			it('performs dynamic redirects with multiple params', async () => {
+				const response = await fixture.fetch('/more/old/hello/world', { redirect: 'manual' });
+				expect(response.headers.get('Location')).to.equal('/more/hello/world');
+			});
+
+			it.skip('falls back to spread rule when dynamic rules should not match', async () => {
+				const response = await fixture.fetch('/more/old/welcome/world', { redirect: 'manual' });
+				expect(response.headers.get('Location')).to.equal('/more/new/welcome/world');
 			});
 		});
 	});
@@ -183,7 +211,7 @@ describe('Astro.redirect', () => {
 		before(async () => {
 			process.env.STATIC_MODE = true;
 			fixture = await loadFixture({
-				root: './fixtures/ssr-redirect/',
+				root: './fixtures/redirects/',
 				output: 'static',
 				redirects: {
 					'/one': '/',