test(e2e): fix failures due to latest and canary releases

[v14.2.10](https://github.com/vercel/next.js/releases/tag/v14.2.10) and
[v15.0.0-canary.147](https://github.com/vercel/next.js/releases/tag/v15.0.0-canary.147) included
vercel/next.js#69802 which added `private` back into `no-cache,no-store`
`cache-control` headers in some cases.

Author: serhalp

tests/e2e/cli-before-regional-blobs-support.test.ts

@@ -1,5 +1,6 @@
 import { expect } from '@playwright/test'
 import { test } from '../utils/playwright-helpers.js'
+import { nextVersionSatisfies } from '../utils/next-version-helpers.mjs'
 
 test('should serve 404 page when requesting non existing page (no matching route) if site is deployed with CLI not supporting regional blobs', async ({
   page,
@@ -19,7 +20,14 @@ test('should serve 404 page when requesting non existing page (no matching route
   expect(await page.textContent('h1')).toBe('404')
 
   expect(headers['netlify-cdn-cache-control']).toBe(
-    'no-cache, no-store, max-age=0, must-revalidate, durable',
+    'private, no-cache, no-store, max-age=0, must-revalidate, durable',
+  )
+  // https://github.com/vercel/next.js/pull/69802 made changes to returned cache-control header,
+  // after that 404 pages would have `private` directive, before that it would not
+  const shouldHavePrivateDirective = nextVersionSatisfies(
+    '>=14.2.10 <15.0.0 || >=15.0.0-canary.147',
+  )
+  expect(headers['cache-control']).toBe(
+    (shouldHavePrivateDirective ? 'private,' : '') + 'no-cache,no-store,max-age=0,must-revalidate',
   )
-  expect(headers['cache-control']).toBe('no-cache,no-store,max-age=0,must-revalidate')
 })

tests/e2e/page-router.test.ts

@@ -1,5 +1,6 @@
 import { expect } from '@playwright/test'
 import { test } from '../utils/playwright-helpers.js'
+import { nextVersionSatisfies } from '../utils/next-version-helpers.mjs'
 
 export function waitFor(millis: number) {
   return new Promise((resolve) => setTimeout(resolve, millis))
@@ -343,7 +344,15 @@ test.describe('Simple Page Router (no basePath, no i18n)', () => {
     expect(headers['netlify-cdn-cache-control']).toBe(
       'no-cache, no-store, max-age=0, must-revalidate, durable',
     )
-    expect(headers['cache-control']).toBe('no-cache,no-store,max-age=0,must-revalidate')
+    // https://github.com/vercel/next.js/pull/69802 made changes to returned cache-control header,
+    // after that 404 pages would have `private` directive, before that it would not
+    const shouldHavePrivateDirective = nextVersionSatisfies(
+      '>=14.2.10 <15.0.0 || >=15.0.0-canary.147',
+    )
+    expect(headers['cache-control']).toBe(
+      (shouldHavePrivateDirective ? 'private,' : '') +
+        'no-cache,no-store,max-age=0,must-revalidate',
+    )
   })
 
   test('should serve 404 page when requesting non existing page (marked with notFound: true in getStaticProps)', async ({
@@ -1042,7 +1051,15 @@ test.describe('Page Router with basePath and i18n', () => {
     expect(headers['netlify-cdn-cache-control']).toBe(
       'no-cache, no-store, max-age=0, must-revalidate, durable',
     )
-    expect(headers['cache-control']).toBe('no-cache,no-store,max-age=0,must-revalidate')
+    // https://github.com/vercel/next.js/pull/69802 made changes to returned cache-control header,
+    // after that 404 pages would have `private` directive, before that it would not
+    const shouldHavePrivateDirective = nextVersionSatisfies(
+      '>=14.2.10 <15.0.0 || >=15.0.0-canary.147',
+    )
+    expect(headers['cache-control']).toBe(
+      (shouldHavePrivateDirective ? 'private,' : '') +
+        'no-cache,no-store,max-age=0,must-revalidate',
+    )
   })
 
   test('requesting a non existing page route that needs to be fetched from the blob store like 404.html (notFound: true)', async ({

tests/e2e/simple-app.test.ts

@@ -221,7 +221,10 @@ test('requesting a non existing page route that needs to be fetched from the blo
 
   // https://github.com/vercel/next.js/pull/66674 made changes to returned cache-control header,
   // before that 404 page would have `private` directive, after that it would not
-  const shouldHavePrivateDirective = !nextVersionSatisfies('>=14.2.4 <15.0.0 || >=15.0.0-canary.24')
+  // ... and then https://github.com/vercel/next.js/pull/69802 changed it back again :(
+  const shouldHavePrivateDirective = nextVersionSatisfies(
+    '>=14.2.4 <14.2.10 || >=15.0.0-canary.24 < 15.0.0-canary.147',
+  )
 
   expect(headers['netlify-cdn-cache-control']).toBe(
     (shouldHavePrivateDirective ? 'private, ' : '') +