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Inject client route component props during RSC render
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‎.changeset/neat-jeans-sneeze.md‎

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---
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"react-router": patch
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---
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[REMOVE] Inject client route component props during RSC render

‎integration/rsc/rsc-test.ts‎

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@@ -2208,5 +2208,324 @@ implementations.forEach((implementation) => {
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validateRSCHtml(await page.content());
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});
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});
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test.describe("Route Client Component Props", () => {
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test("Passes props to client route component", async ({ page }) => {
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let port = await getPort();
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stop = await setupRscTest({
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implementation,
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port,
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files: {
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"src/routes/home.tsx": js`
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export { default, clientLoader, clientAction } from "./home.client";
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`,
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"src/routes/home.client.tsx": js`
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"use client";
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import { Form } from "react-router";
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export async function clientLoader() {
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return { message: "Hello from client loader!" };
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}
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export async function clientAction({ request }) {
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const formData = await request.formData();
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const name = formData.get("name") as string;
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return { actionResult: "Hello " + name + " from client action!" };
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}
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export default function HomeRoute({ loaderData, actionData, matches, params }) {
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return (
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<div>
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<h2 data-home>Home Route</h2>
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{loaderData && (
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<p data-loader-data>{loaderData.message}</p>
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)}
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{actionData && (
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<p data-action-data>{actionData.actionResult}</p>
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)}
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{matches && (
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<div data-matches>
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<p data-matches-ids>matches ids: {matches.map(match => match.id).join(", ")}</p>
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</div>
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)}
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{params && (
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<div data-params>
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<p data-params-type>typeof params: {typeof params}</p>
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<p data-params-count>params count: {Object.keys(params).length}</p>
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</div>
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)}
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<Form method="post">
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<input name="name" data-name-input />
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<button type="submit" data-submit-button>
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Submit Action
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</button>
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</Form>
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</div>
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);
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}
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`,
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},
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});
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await page.goto(`http://localhost:${port}/`);
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// Verify loader data is passed
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await page.waitForSelector("[data-loader-data]");
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expect(await page.locator("[data-loader-data]").textContent()).toBe(
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"Hello from client loader!"
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);
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// Verify params are passed (empty for home route)
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await page.waitForSelector("[data-params]");
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await page.waitForSelector("[data-params-type]");
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await page.waitForSelector("[data-params-count]");
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expect(await page.locator("[data-params-type]").textContent()).toBe(
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"typeof params: object"
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);
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expect(await page.locator("[data-params-count]").textContent()).toBe(
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"params count: 0"
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);
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// Verify matches are passed
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await page.waitForSelector("[data-matches]");
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await page.waitForSelector("[data-matches-ids]");
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expect(await page.locator("[data-matches-ids]").textContent()).toBe(
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"matches ids: root, home"
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);
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// Submit the form to trigger the client action
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await page.fill("[data-name-input]", "World");
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await page.click("[data-submit-button]");
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// Verify the action data is displayed
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await page.waitForSelector("[data-action-data]");
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expect(await page.locator("[data-action-data]").textContent()).toBe(
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"Hello World from client action!"
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);
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// Ensure this is using RSC
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validateRSCHtml(await page.content());
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});
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test("Passes props to client ErrorBoundary when error is thrown in client loader", async ({
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page,
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}) => {
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let port = await getPort();
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stop = await setupRscTest({
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implementation,
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port,
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files: {
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"src/routes/home.tsx": js`
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export { default, clientLoader, ErrorBoundary } from "./home.client";
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`,
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"src/routes/home.client.tsx": js`
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"use client";
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export async function clientLoader() {
2326+
throw new Error("Intentional error from client loader");
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}
2328+
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export function ErrorBoundary({ error, params }) {
2330+
return (
2331+
<div>
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<h2 data-error-title>Error Caught!</h2>
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<p data-error-message>{error.message}</p>
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{params && (
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<div data-error-params>
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<p data-error-params-type>typeof params: {typeof params}</p>
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<p data-error-params-count>params count: {Object.keys(params).length}</p>
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</div>
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)}
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</div>
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);
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}
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export default function HomeRoute() {
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return (
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<div>
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<h2>Home Route</h2>
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</div>
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);
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}
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`,
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},
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});
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await page.goto(`http://localhost:${port}/`);
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// Verify error boundary is shown
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await page.waitForSelector("[data-error-title]");
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await page.waitForSelector("[data-error-message]");
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expect(await page.locator("[data-error-title]").textContent()).toBe(
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"Error Caught!"
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);
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expect(await page.locator("[data-error-message]").textContent()).toBe(
2364+
"Intentional error from client loader"
2365+
);
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// Verify params are passed to error boundary
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await page.waitForSelector("[data-error-params]");
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await page.waitForSelector("[data-error-params-type]");
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await page.waitForSelector("[data-error-params-count]");
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expect(
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await page.locator("[data-error-params-type]").textContent()
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).toBe("typeof params: object");
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expect(
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await page.locator("[data-error-params-count]").textContent()
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).toBe("params count: 0");
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// Ensure this is using RSC
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validateRSCHtml(await page.content());
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});
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test("Passes props to client ErrorBoundary when error is thrown in server loader", async ({
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page,
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}) => {
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let port = await getPort();
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stop = await setupRscTest({
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implementation,
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port,
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dev: true,
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files: {
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"src/routes/home.tsx": js`
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export function loader() {
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throw new Error("Intentional error from server loader");
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}
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export default function HomeRoute() {
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return <h2>This should not be rendered</h2>;
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}
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export { ErrorBoundary } from "./home.client";
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`,
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"src/routes/home.client.tsx": js`
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"use client";
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export function ErrorBoundary({ error, params }) {
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return (
2407+
<div>
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<h2 data-error-title>Error Caught!</h2>
2409+
<p data-error-message>{error.message}</p>
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{params && (
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<div data-error-params>
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<p data-error-params-type>typeof params: {typeof params}</p>
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<p data-error-params-count>params count: {Object.keys(params).length}</p>
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</div>
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)}
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</div>
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);
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}
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`,
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},
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});
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await page.goto(`http://localhost:${port}/`);
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// Verify error boundary is shown
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await page.waitForSelector("[data-error-title]");
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await page.waitForSelector("[data-error-message]");
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expect(await page.locator("[data-error-title]").textContent()).toBe(
2429+
"Error Caught!"
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);
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expect(await page.locator("[data-error-message]").textContent()).toBe(
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"Intentional error from server loader"
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);
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// Verify params are passed to error boundary
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await page.waitForSelector("[data-error-params]");
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await page.waitForSelector("[data-error-params-type]");
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await page.waitForSelector("[data-error-params-count]");
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expect(
2440+
await page.locator("[data-error-params-type]").textContent()
2441+
).toBe("typeof params: object");
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expect(
2443+
await page.locator("[data-error-params-count]").textContent()
2444+
).toBe("params count: 0");
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// Ensure this is using RSC
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validateRSCHtml(await page.content());
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});
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test("Passes props to client HydrateFallback", async ({ page }) => {
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let port = await getPort();
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stop = await setupRscTest({
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implementation,
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port,
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files: {
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"src/routes/home.tsx": js`
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export { default, clientLoader, HydrateFallback } from "./home.client";
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`,
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"src/routes/home.client.tsx": js`
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"use client";
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export async function clientLoader() {
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const pollingPromise = (async () => {
2464+
while (globalThis.unblockClientLoader !== true) {
2465+
await new Promise((resolve) => setTimeout(resolve, 0));
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}
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})();
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const timeoutPromise = new Promise((_, reject) => {
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setTimeout(() => reject(new Error("Client loader wasn't unblocked after 5s")), 5000);
2470+
});
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await Promise.race([pollingPromise, timeoutPromise]);
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return { message: "Hello from client loader!" };
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}
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export function HydrateFallback({ params }) {
2476+
return (
2477+
<div>
2478+
<h2 data-hydrate-fallback>Hydrate Fallback</h2>
2479+
{params && (
2480+
<div data-hydrate-params>
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<p data-hydrate-params-type>typeof params: {typeof params}</p>
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<p data-hydrate-params-count>params count: {Object.keys(params).length}</p>
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</div>
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)}
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</div>
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);
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}
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export default function HomeRoute() {
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return (
2491+
<div>
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<h2 data-home>Home Route</h2>
2493+
</div>
2494+
);
2495+
}
2496+
`,
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},
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});
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await page.goto(`http://localhost:${port}/`);
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// Verify the hydrate fallback is shown initially
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await page.waitForSelector("[data-hydrate-fallback]");
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expect(
2505+
await page.locator("[data-hydrate-fallback]").textContent()
2506+
).toBe("Hydrate Fallback");
2507+
2508+
// Verify params are passed to hydrate fallback
2509+
await page.waitForSelector("[data-hydrate-params]");
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await page.waitForSelector("[data-hydrate-params-type]");
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await page.waitForSelector("[data-hydrate-params-count]");
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expect(
2513+
await page.locator("[data-hydrate-params-type]").textContent()
2514+
).toBe("typeof params: object");
2515+
expect(
2516+
await page.locator("[data-hydrate-params-count]").textContent()
2517+
).toBe("params count: 0");
2518+
2519+
// Unblock the client loader to allow it to complete
2520+
await page.evaluate(() => {
2521+
(globalThis as any).unblockClientLoader = true;
2522+
});
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2524+
await page.waitForSelector("[data-home]");
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// Ensure this is using RSC
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validateRSCHtml(await page.content());
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});
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});
22112530
});
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});

‎packages/react-router/index-react-server-client.ts‎

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@@ -9,6 +9,9 @@ export {
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Router,
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RouterProvider,
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Routes,
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WithComponentProps as UNSAFE_WithComponentProps,
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WithErrorBoundaryProps as UNSAFE_WithErrorBoundaryProps,
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WithHydrateFallbackProps as UNSAFE_WithHydrateFallbackProps,
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} from "./lib/components";
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export {
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BrowserRouter,

‎packages/react-router/index.ts‎

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@@ -358,8 +358,11 @@ export {
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export {
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hydrationRouteProperties as UNSAFE_hydrationRouteProperties,
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mapRouteProperties as UNSAFE_mapRouteProperties,
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WithComponentProps as UNSAFE_WithComponentProps,
361362
withComponentProps as UNSAFE_withComponentProps,
363+
WithHydrateFallbackProps as UNSAFE_WithHydrateFallbackProps,
362364
withHydrateFallbackProps as UNSAFE_withHydrateFallbackProps,
365+
WithErrorBoundaryProps as UNSAFE_WithErrorBoundaryProps,
363366
withErrorBoundaryProps as UNSAFE_withErrorBoundaryProps,
364367
} from "./lib/components";
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