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test(cloudflare): prove browser reuse of warmed RSC variants #3030

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test(cloudflare): prove browser reuse of warmed RSC variants #3030

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27 changes: 23 additions & 4 deletions tests/e2e/cloudflare-workers/rsc-prewarm.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -269,6 +269,17 @@ test("deploy-prewarmed full and loading RSC variants are reused by browser navig
});
}

await runFresh(async (page) => {
await gotoCurrentBuild(page, "/prewarm/router");
const shell = await observeRsc(page, () => page.getByTestId("router-prefetch").click());
expectLoadingShell(shell);

const full = await observeRsc(page, () => page.getByTestId("router-navigate").click());
expectFull(full);
await expect(page).toHaveURL(new RegExp(`${TARGET_PATH}$`));
await expect(page.getByRole("heading", { name: "Prewarm target" })).toBeVisible();
});

await runFresh(async (page) => {
let targetRscRequests = 0;
page.on("request", (request) => {
Expand All @@ -295,8 +306,16 @@ test("deploy-prewarmed full and loading RSC variants are reused by browser navig
await expect(page).toHaveURL(new RegExp(`${TARGET_PATH}$`));
});

const dynamic = await request.get(`${baseURL}/dynamic?_rsc`, { headers: fullHeaders });
expect(dynamic.ok()).toBe(true);
expect(dynamic.headers()["cache-control"]).toContain("no-store");
expect(dynamic.headers()["cf-cache-status"]).toBe("BYPASS");
await runFresh(async (page) => {
const dynamicResponsePromise = page.waitForResponse((response) => {
const request = response.request();
return new URL(response.url()).pathname === "/dynamic" && request.headers().rsc === "1";
});
await gotoCurrentBuild(page, "/prewarm/dynamic");
const dynamic = await dynamicResponsePromise;
rejectStaleSeedWorker(dynamic);
expect(dynamic.ok()).toBe(true);
expect(dynamic.headers()["cache-control"]).toContain("no-store");
expect(dynamic.headers()["cf-cache-status"]).toBe("BYPASS");
});
});
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