diff --git a/Auto Run Docs/SpecKit-web-header-analyzer-Phase-09-Polish.md b/Auto Run Docs/SpecKit-web-header-analyzer-Phase-09-Polish.md
index 1a37618..df6ae90 100644
--- a/Auto Run Docs/SpecKit-web-header-analyzer-Phase-09-Polish.md	
+++ b/Auto Run Docs/SpecKit-web-header-analyzer-Phase-09-Polish.md	
@@ -31,7 +31,7 @@ This phase performs final integration, accessibility audit, responsive testing,
 
 - [x] Complete flow works end-to-end: paste headers → configure tests → analyse → view report → export. Notes: replaced Playwright example spec with end-to-end flow test (paste + configure + analyse + report + export), adjusted Playwright webServer ports/CORS for local 3100 runs, ran `npx playwright test e2e/example.spec.ts --project=chromium`.
 - [x] File drop flow works: drop EML → auto-populate → analyse → report. Notes: extract header block from dropped EML before populating input; updated FileDropZone tests and ran `npx vitest run src/__tests__/FileDropZone.test.tsx`.
-- [ ] Cache flow works: analyse → reload → see cached results → clear cache
+- [x] Cache flow works: analyse → reload → see cached results → clear cache. Notes: added Playwright cache flow coverage (reload + clear) in e2e/example.spec.ts and ran `npx playwright test e2e/example.spec.ts --project=chromium`.
 - [ ] Rate limiting flow works: exceed limit → CAPTCHA modal → solve → retry succeeds
 - [ ] `pytest backend/tests/` passes with ≥80% coverage on new modules
 - [ ] `npx vitest run --coverage` passes with ≥80% coverage on new components
diff --git a/frontend/e2e/example.spec.ts b/frontend/e2e/example.spec.ts
index f5994bb..14c9e63 100644
--- a/frontend/e2e/example.spec.ts
+++ b/frontend/e2e/example.spec.ts
@@ -59,3 +59,28 @@ test("complete analysis flow from paste to export", async ({ page }) => {
   const htmlContents = await fs.readFile(htmlPath, "utf8");
   expect(htmlContents).toContain("<title>Email Header Analysis Report</title>");
 });
+
+test("cache flow persists report across reloads and clears on demand", async ({ page }) => {
+  const headers = await fs.readFile(headersPath, "utf8");
+
+  await page.goto("http://localhost:3100");
+
+  const headerInput = page.getByRole("textbox", { name: "Header Input" });
+  await headerInput.fill(headers);
+
+  await page.getByRole("button", { name: "Analyse Headers" }).click();
+
+  const reportContainer = page.getByTestId("report-container");
+  await reportContainer.waitFor({ state: "visible", timeout: 30000 });
+
+  await page.reload();
+
+  await expect(page.getByTestId("report-container")).toBeVisible();
+  await expect(page.getByText("Cached Result")).toBeVisible();
+
+  const clearCacheButton = page.getByRole("button", { name: "Clear Cache" });
+  await clearCacheButton.click();
+
+  await expect(page.getByTestId("report-container")).toHaveCount(0);
+  await expect(headerInput).toHaveValue("");
+});