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626 lines
27 KiB
HTML
626 lines
27 KiB
HTML
<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Request cache</title>
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<meta name="help" href="https://fetch.spec.whatwg.org/#request">
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<meta name="timeout" content="long">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/utils.js"></script>
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<script src="/common/get-host-info.sub.js"></script>
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</head>
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<body>
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<script>
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var now = new Date();
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/**
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* Each test is run twice: once using etag/If-None-Match and once with
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* date/If-Modified-Since. Each test run gets its own URL and randomized
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* content and operates independently.
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*
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* The test steps are run with request_cache.length fetch requests issued
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* and their immediate results sanity-checked. The cache.py server script
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* stashes an entry containing any If-None-Match, If-Modified-Since, Pragma,
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* and Cache-Control observed headers for each request it receives. When
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* the test fetches have run, this state is retrieved from cache.py and the
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* expected_* lists are checked, including their length.
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*
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* This means that if a request_* fetch is expected to hit the cache and not
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* touch the network, then there will be no entry for it in the expect_*
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* lists. AKA (request_cache.length - expected_validation_headers.length)
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* should equal the number of cache hits that didn't touch the network.
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*
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* Test dictionary keys:
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* - state: required string that determines whether the Expires response for
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* the fetched document should be set in the future ("fresh") or past
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* ("stale").
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* - vary: optional string to be passed to the server for it to quote back
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* in a Vary header on the response to us.
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* - cache_control: optional string to be passed to the server for it to
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* quote back in a Cache-Control header on the response to us.
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* - redirect: optional string "same-origin" or "cross-origin". If
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* provided, the server will issue an absolute redirect to the script on
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* the same or a different origin, as appropriate. The redirected
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* location is the script with the redirect parameter removed, so the
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* content/state/etc. will be as if you hadn't specified a redirect.
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* - request_cache: required array of cache modes to use (via `cache`).
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* - request_headers: optional array of explicit fetch `headers` arguments.
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* If provided, the server will log an empty dictionary for each request
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* instead of the request headers it would normally log.
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* - response: optional array of specialized response handling. Right now,
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* "error" array entries indicate a network error response is expected
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* which will reject with a TypeError.
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* - expected_validation_headers: required boolean array indicating whether
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* the server should have seen an If-None-Match/If-Modified-Since header
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* in the request.
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* - expected_no_cache_headers: required boolean array indicating whether
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* the server should have seen Pragma/Cache-control:no-cache headers in
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* the request.
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* - expected_max_age_headers: optional boolean array indicating whether
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* the server should have seen a Cache-Control:max-age=0 header in the
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* request.
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*/
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var tests = [
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{
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name: 'RequestCache "default" mode checks the cache for previously cached content and goes to the network for stale responses',
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state: "stale",
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request_cache: ["default", "default"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "default" mode checks the cache for previously cached content and avoids going to the network if a fresh response exists',
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state: "fresh",
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request_cache: ["default", "default"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false],
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},
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{
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name: 'RequestCache "no-cache" mode revalidates stale responses found in the cache',
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state: "stale",
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request_cache: ["default", "no-cache"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [false, false],
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expected_max_age_headers: [false, true],
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},
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{
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name: 'RequestCache "no-cache" mode revalidates fresh responses found in the cache',
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state: "fresh",
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request_cache: ["default", "no-cache"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [false, false],
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expected_max_age_headers: [false, true],
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},
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{
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name: 'RequestCache "force-cache" mode checks the cache for previously cached content and avoid revalidation for stale responses',
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state: "stale",
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request_cache: ["default", "force-cache"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false],
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},
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{
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name: 'RequestCache "force-cache" mode checks the cache for previously cached content and avoid revalidation for fresh responses',
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state: "fresh",
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request_cache: ["default", "force-cache"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false],
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},
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{
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name: 'RequestCache "force-cache" mode checks the cache for previously cached content and goes to the network if a cached response is not found',
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state: "stale",
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request_cache: ["force-cache"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false],
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},
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{
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name: 'RequestCache "force-cache" mode checks the cache for previously cached content and goes to the network if a cached response is not found',
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state: "fresh",
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request_cache: ["force-cache"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false],
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},
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{
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name: 'RequestCache "force-cache" mode checks the cache for previously cached content and goes to the network if a cached response would vary',
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state: "stale",
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vary: "*",
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request_cache: ["default", "force-cache"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "force-cache" mode checks the cache for previously cached content and goes to the network if a cached response would vary',
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state: "fresh",
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vary: "*",
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request_cache: ["default", "force-cache"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "force-cache" stores the response in the cache if it goes to the network',
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state: "stale",
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request_cache: ["force-cache", "default"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "force-cache" stores the response in the cache if it goes to the network',
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state: "fresh",
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request_cache: ["force-cache", "default"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false],
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},
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{
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name: 'RequestCache "only-if-cached" mode checks the cache for previously cached content and avoids revalidation for stale responses',
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state: "stale",
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request_cache: ["default", "only-if-cached"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false]
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},
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{
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name: 'RequestCache "only-if-cached" mode checks the cache for previously cached content and avoids revalidation for fresh responses',
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state: "fresh",
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request_cache: ["default", "only-if-cached"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [false]
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},
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{
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name: 'RequestCache "only-if-cached" mode checks the cache for previously cached content and does not go to the network if a cached response is not found',
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state: "fresh",
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request_cache: ["only-if-cached"],
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response: ["error"],
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expected_validation_headers: [],
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expected_no_cache_headers: []
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},
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{
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name: 'RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content',
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state: "fresh",
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request_cache: ["default", "only-if-cached"],
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redirect: "same-origin",
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content',
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state: "stale",
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request_cache: ["default", "only-if-cached"],
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redirect: "same-origin",
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "only-if-cached" (with "same-origin") does not follow redirects across origins and rejects',
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state: "fresh",
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request_cache: ["default", "only-if-cached"],
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redirect: "cross-origin",
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response: [null, "error"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "only-if-cached" (with "same-origin") does not follow redirects across origins and rejects',
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state: "stale",
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request_cache: ["default", "only-if-cached"],
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redirect: "cross-origin",
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response: [null, "error"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "no-store" mode does not check the cache for previously cached content and goes to the network regardless',
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state: "stale",
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request_cache: ["default", "no-store"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "no-store" mode does not check the cache for previously cached content and goes to the network regardless',
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state: "fresh",
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request_cache: ["default", "no-store"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "no-store" mode does not store the response in the cache',
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state: "stale",
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request_cache: ["no-store", "default"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "no-store" mode does not store the response in the cache',
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state: "fresh",
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request_cache: ["no-store", "default"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Modified-Since header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Modified-Since": now.toGMTString()}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Modified-Since header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Modified-Since": now.toGMTString()}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Modified-Since header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{"If-Modified-Since": now.toGMTString()}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Modified-Since header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{"If-Modified-Since": now.toGMTString()}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-None-Match header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-None-Match": '"foo"'}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-None-Match header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-None-Match": '"foo"'}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-None-Match header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{"If-None-Match": '"foo"'}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-None-Match header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{"If-None-Match": '"foo"'}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Unmodified-Since header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Unmodified-Since": now.toGMTString()}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Unmodified-Since header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Unmodified-Since": now.toGMTString()}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Unmodified-Since header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{"If-Unmodified-Since": now.toGMTString()}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Unmodified-Since header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{"If-Unmodified-Since": now.toGMTString()}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Match header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Match": '"foo"'}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Match header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Match": '"foo"'}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Match header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{"If-Match": '"foo"'}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Match header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{"If-Match": '"foo"'}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Range header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Range": '"foo"'}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Range header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{}, {"If-Range": '"foo"'}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "default" mode with an If-Range header is treated similarly to "no-store"',
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state: "stale",
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request_cache: ["default", "default"],
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request_headers: [{"If-Range": '"foo"'}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "default" mode with an If-Range header is treated similarly to "no-store"',
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state: "fresh",
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request_cache: ["default", "default"],
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request_headers: [{"If-Range": '"foo"'}, {}],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'Responses with the "Cache-Control: no-store" header are not stored in the cache',
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state: "stale",
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cache_control: "no-store",
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request_cache: ["default", "default"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'Responses with the "Cache-Control: no-store" header are not stored in the cache',
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state: "fresh",
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cache_control: "no-store",
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request_cache: ["default", "default"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, false],
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},
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{
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name: 'RequestCache "reload" mode does not check the cache for previously cached content and goes to the network regardless',
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state: "stale",
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request_cache: ["default", "reload"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "reload" mode does not check the cache for previously cached content and goes to the network regardless',
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state: "fresh",
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request_cache: ["default", "reload"],
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expected_validation_headers: [false, false],
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expected_no_cache_headers: [false, true],
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},
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{
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name: 'RequestCache "reload" mode does store the response in the cache',
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state: "stale",
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request_cache: ["reload", "default"],
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expected_validation_headers: [false, true],
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expected_no_cache_headers: [true, false],
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},
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{
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name: 'RequestCache "reload" mode does store the response in the cache',
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state: "fresh",
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request_cache: ["reload", "default"],
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expected_validation_headers: [false],
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expected_no_cache_headers: [true],
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},
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{
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name: 'RequestCache "reload" mode does store the response in the cache even if a previous response is already stored',
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state: "stale",
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request_cache: ["default", "reload", "default"],
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expected_validation_headers: [false, false, true],
|
|
expected_no_cache_headers: [false, true, false],
|
|
},
|
|
{
|
|
name: 'RequestCache "reload" mode does store the response in the cache even if a previous response is already stored',
|
|
state: "fresh",
|
|
request_cache: ["default", "reload", "default"],
|
|
expected_validation_headers: [false, false],
|
|
expected_no_cache_headers: [false, true],
|
|
},
|
|
];
|
|
function base_path() {
|
|
return location.pathname.replace(/\/[^\/]*$/, '/');
|
|
}
|
|
function make_url(uuid, id, value, content, info) {
|
|
var dates = {
|
|
fresh: new Date(now.getFullYear() + 1, now.getMonth(), now.getDay()).toGMTString(),
|
|
stale: new Date(now.getFullYear() - 1, now.getMonth(), now.getDay()).toGMTString(),
|
|
};
|
|
var vary = "";
|
|
if ("vary" in info) {
|
|
vary = "&vary=" + info.vary;
|
|
}
|
|
var cache_control = "";
|
|
if ("cache_control" in info) {
|
|
cache_control = "&cache_control=" + info.cache_control;
|
|
}
|
|
var redirect = "";
|
|
|
|
var ignore_request_headers = "";
|
|
if ("request_headers" in info) {
|
|
// Ignore the request headers that we send since they may be synthesized by the test.
|
|
ignore_request_headers = "&ignore";
|
|
}
|
|
var url_sans_redirect = "resources/cache.py?token=" + uuid +
|
|
"&content=" + content +
|
|
"&" + id + "=" + value +
|
|
"&expires=" + dates[info.state] +
|
|
vary + cache_control + ignore_request_headers;
|
|
// If there's a redirect, the target is the script without any redirect at
|
|
// either the same domain or a different domain.
|
|
if ("redirect" in info) {
|
|
var host_info = get_host_info();
|
|
var origin;
|
|
switch (info.redirect) {
|
|
case "same-origin":
|
|
origin = host_info['HTTP_ORIGIN'];
|
|
break;
|
|
case "cross-origin":
|
|
origin = host_info['HTTP_REMOTE_ORIGIN'];
|
|
break;
|
|
}
|
|
var redirected_url = origin + base_path() + url_sans_redirect;
|
|
return url_sans_redirect + "&redirect=" + encodeURIComponent(redirected_url);
|
|
} else {
|
|
return url_sans_redirect;
|
|
}
|
|
}
|
|
function expected_status(type, identifier, init) {
|
|
if (type == "date" &&
|
|
init.headers &&
|
|
init.headers["If-Modified-Since"] == identifier) {
|
|
// The server will respond with a 304 in this case.
|
|
return [304, "Not Modified"];
|
|
}
|
|
return [200, "OK"];
|
|
}
|
|
function expected_response_text(type, identifier, init, content) {
|
|
if (type == "date" &&
|
|
init.headers &&
|
|
init.headers["If-Modified-Since"] == identifier) {
|
|
// The server will respond with a 304 in this case.
|
|
return "";
|
|
}
|
|
return content;
|
|
}
|
|
function server_state(uuid) {
|
|
return fetch("resources/cache.py?querystate&token=" + uuid)
|
|
.then(function(response) {
|
|
return response.text();
|
|
}).then(function(text) {
|
|
// null will be returned if the server never received any requests
|
|
// for the given uuid. Normalize that to an empty list consistent
|
|
// with our representation.
|
|
return JSON.parse(text) || [];
|
|
});
|
|
}
|
|
function make_test(type, info) {
|
|
return function(test) {
|
|
var uuid = token();
|
|
var identifier = (type == "tag" ? Math.random() : now.toGMTString());
|
|
var content = Math.random().toString();
|
|
var url = make_url(uuid, type, identifier, content, info);
|
|
var fetch_functions = [];
|
|
for (var i = 0; i < info.request_cache.length; ++i) {
|
|
fetch_functions.push(function(idx) {
|
|
var init = {cache: info.request_cache[idx]};
|
|
if ("request_headers" in info) {
|
|
init.headers = info.request_headers[idx];
|
|
}
|
|
if (init.cache === "only-if-cached") {
|
|
// only-if-cached requires we use same-origin mode.
|
|
init.mode = "same-origin";
|
|
}
|
|
return fetch(url, init)
|
|
.then(function(response) {
|
|
if ("response" in info && info.response[idx] === "error") {
|
|
assert_true(false, "fetch should have been an error");
|
|
return;
|
|
}
|
|
assert_array_equals([response.status, response.statusText],
|
|
expected_status(type, identifier, init));
|
|
return response.text();
|
|
}).then(function(text) {
|
|
assert_equals(text, expected_response_text(type, identifier, init, content));
|
|
}, function(reason) {
|
|
if ("response" in info && info.response[idx] === "error") {
|
|
assert_throws(new TypeError(), function() { throw reason; });
|
|
} else {
|
|
throw reason;
|
|
}
|
|
});
|
|
});
|
|
}
|
|
var i = 0;
|
|
function run_next_step() {
|
|
if (fetch_functions.length) {
|
|
return fetch_functions.shift()(i++)
|
|
.then(run_next_step);
|
|
} else {
|
|
return Promise.resolve();
|
|
}
|
|
}
|
|
return run_next_step()
|
|
.then(function() {
|
|
// Now, query the server state
|
|
return server_state(uuid);
|
|
}).then(function(state) {
|
|
var expectedState = [];
|
|
info.expected_validation_headers.forEach(function (validate) {
|
|
if (validate) {
|
|
if (type == "tag") {
|
|
expectedState.push({"If-None-Match": '"' + identifier + '"'});
|
|
} else {
|
|
expectedState.push({"If-Modified-Since": identifier});
|
|
}
|
|
} else {
|
|
expectedState.push({});
|
|
}
|
|
});
|
|
for (var i = 0; i < info.expected_no_cache_headers.length; ++i) {
|
|
if (info.expected_no_cache_headers[i]) {
|
|
expectedState[i]["Pragma"] = "no-cache";
|
|
expectedState[i]["Cache-Control"] = "no-cache";
|
|
}
|
|
}
|
|
if ("expected_max_age_headers" in info) {
|
|
for (var i = 0; i < info.expected_max_age_headers.length; ++i) {
|
|
if (info.expected_max_age_headers[i]) {
|
|
expectedState[i]["Cache-Control"] = "max-age=0";
|
|
}
|
|
}
|
|
}
|
|
assert_equals(state.length, expectedState.length);
|
|
for (var i = 0; i < state.length; ++i) {
|
|
for (var header in state[i]) {
|
|
assert_equals(state[i][header], expectedState[i][header]);
|
|
delete expectedState[i][header];
|
|
}
|
|
for (var header in expectedState[i]) {
|
|
assert_false(header in state[i]);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
}
|
|
tests.forEach(function(info) {
|
|
promise_test(make_test("tag", info), info.name + " with Etag and " + info.state + " response");
|
|
promise_test(make_test("date", info), info.name + " with date and " + info.state + " response");
|
|
});
|
|
</script>
|
|
</body>
|
|
</html>
|