simplify middleware e2e check

Author: dario-piotrowicz

examples/middleware/e2e/cloudflare-context.spec.ts

@@ -1,9 +1,9 @@
 import { test, expect } from "@playwright/test";
 
-test("cloudflare context env object is populated", async ({ page }) => {
+test("middlewares have access to the cloudflare context", async ({ page }) => {
   await page.goto("/middleware");
   const cloudflareContextHeaderElement = page.getByTestId("cloudflare-context-header");
   expect(await cloudflareContextHeaderElement.textContent()).toContain(
-    "variables from `cloudflareContext.env`: MY_KV, MY_VAR"
+    "typeof `cloudflareContext.env` = object"
   );
 });

examples/middleware/middleware.ts

@@ -23,10 +23,7 @@ export async function middleware(request: NextRequest, event: NextFetchEvent) {
 
   requestHeaders.set(
     "x-cloudflare-context",
-    `variables from \`cloudflareContext.env\`: ${Object.keys(cloudflareContext.env)
-      .filter((key) => key.startsWith("MY_"))
-      .sort()
-      .join(", ")}`
+    `typeof \`cloudflareContext.env\` = ${typeof cloudflareContext.env}`
   );
 
   return NextResponse.next({