| <!doctype html> |
| <title>Cache Storage: verify cache_storage padding behavior</title> |
| <link rel="help" href="https://w3c.github.io/ServiceWorker/#cache-interface"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| 'use strict'; |
| |
| async function usage_for_credentials(cache, url, mode) { |
| const r = await fetch(url, { mode: 'no-cors', credentials: mode }); |
| assert_equals('opaque', r.type); |
| await cache.put(url, r); |
| return (await navigator.storage.estimate()).usage; |
| } |
| |
| promise_test(async t => { |
| const cache = await caches.open('padding'); |
| const url = 'http://localhost:8000/cachestorage/resources/simple.txt'; |
| |
| // Get the reported disk usage for an opaque response without credentials. |
| const usage1 = await usage_for_credentials(cache, url, 'omit'); |
| const usage2 = await usage_for_credentials(cache, url, 'same-origin'); |
| |
| // Get the reported disk usage for an opaque response with the same URL, |
| // but also with credentials enabled. |
| const usage3 = await usage_for_credentials(cache, url, 'include'); |
| |
| assert_equals(usage1, usage2, |
| "Credentials mode 'omit' and 'same-origin' should have the " + |
| "same padding size since credentials are not sent."); |
| assert_not_equals(usage1, usage3, |
| "Credentials mode 'include' should result in a different " + |
| "padding size."); |
| }, 'Cache padding varies based on if Response was loaded with credentials.'); |
| |
| </script> |
