Reland "[Credentialless] Add credentialless reporting"

This is a reland of 9787b3957b

Diff here:
https://chromium-review.googlesource.com/c/chromium/src/+/2940593/1..8
which add the report link and fix wpt tests in
`reporting-to-endpoint.https.html` and unit test in
`cross_origin_resource_policy_unittest.cc` alone with
a diff of test in
`credentialless/reporting-subresource-corp.tentative.https.html`
which related to CORP issue landed in
https://chromium-review.googlesource.com/c/chromium/src/+/2886899

Original change's description:
> [Credentialless] Add credentialless reporting
>
> This CL adds support for navigational COEP:credentialless
> requests to cross-origin-resource-policy reporting.
> When a navigational response is blocked, COEP:credentialless
> report will be sent.
>
> Bug: 1200849, 1215583
> Change-Id: I3ab8235190597b6292f99afe5daffd059435d369
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2867085
> Reviewed-by: Yifan Luo <lyf@chromium.org>
> Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
> Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
> Commit-Queue: Yifan Luo <lyf@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#888454}

Bug: 1200849
Change-Id: Ib1fe3721de61cbea1b9284d07bc0a09b5923f474
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2940593
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
Commit-Queue: Yifan Luo <lyf@chromium.org>
Cr-Commit-Position: refs/heads/master@{#890720}

services/network/public/cpp/cross_origin_resource_policy.cc

@@ -238,8 +238,11 @@ absl::optional<mojom::BlockedByResponseReason> IsBlockedInternalWithReporting(
     mojom::CrossOriginEmbedderPolicyReporter* reporter) {
   constexpr auto kBlockedDueToCoep = mojom::BlockedByResponseReason::
       kCorpNotSameOriginAfterDefaultedToSameOriginByCoep;
-  if (embedder_policy.report_only_value ==
-          mojom::CrossOriginEmbedderPolicyValue::kRequireCorp &&
+  if ((embedder_policy.report_only_value ==
+           mojom::CrossOriginEmbedderPolicyValue::kRequireCorp ||
+       (embedder_policy.report_only_value ==
+            mojom::CrossOriginEmbedderPolicyValue::kCredentialless &&
+        request_mode == mojom::RequestMode::kNavigate)) &&
       reporter) {
     const auto result = IsBlockedInternal(
         policy, request_url, request_initiator, request_mode,

services/network/public/cpp/cross_origin_resource_policy_unittest.cc

@@ -6,9 +6,11 @@
 #include <vector>
 
 #include "base/memory/ref_counted.h"
+#include "base/test/scoped_feature_list.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_util.h"
 #include "services/network/public/cpp/cross_origin_resource_policy.h"
+#include "services/network/public/cpp/features.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace network {
@@ -155,6 +157,10 @@ TEST(CrossOriginResourcePolicyTest, ShouldAllowSameSite) {
 }
 
 TEST(CrossOriginResourcePolicyTest, WithCOEP) {
+  base::test::ScopedFeatureList scoped_feature_list;
+  scoped_feature_list.InitWithFeatures(
+      {features::kCrossOriginEmbedderPolicyCredentialless}, {});
+
   mojom::URLResponseHead corp_none;
   mojom::URLResponseHead corp_same_origin;
   mojom::URLResponseHead corp_cross_origin;
@@ -189,29 +195,34 @@ TEST(CrossOriginResourcePolicyTest, WithCOEP) {
         expectation_with_coep_none;
     const absl::optional<mojom::BlockedByResponseReason>
         expectation_with_coep_require_corp;
+    const absl::optional<mojom::BlockedByResponseReason>
+        expectation_with_coep_credentialless;
   } test_cases[] = {
       // We don't have a cross-origin-resource-policy header on a response. That
       // leads to blocking when COEP: kRequireCorp is used.
       {RequestMode::kNoCors, another_origin, corp_none.Clone(), kAllow,
+       mojom::BlockedByResponseReason::
+           kCorpNotSameOriginAfterDefaultedToSameOriginByCoep,
        mojom::BlockedByResponseReason::
            kCorpNotSameOriginAfterDefaultedToSameOriginByCoep},
       // We have "cross-origin-resource-policy: same-origin", so regardless of
       // COEP the response is blocked.
       {RequestMode::kNoCors, another_origin, corp_same_origin.Clone(),
+       mojom::BlockedByResponseReason::kCorpNotSameOrigin,
        mojom::BlockedByResponseReason::kCorpNotSameOrigin,
        mojom::BlockedByResponseReason::kCorpNotSameOrigin},
       // We have "cross-origin-resource-policy: cross-origin", so regardless of
       // COEP the response is allowed.
       {RequestMode::kNoCors, another_origin, corp_cross_origin.Clone(), kAllow,
-       kAllow},
+       kAllow, kAllow},
       // The origin of the request URL and request's origin match, so regardless
       // of COEP the response is allowed.
       {RequestMode::kNoCors, destination_origin, corp_same_origin.Clone(),
-       kAllow, kAllow},
+       kAllow, kAllow, kAllow},
       // The request mode is "cors", so so regardless of COEP the response is
       // allowed.
       {RequestMode::kCors, another_origin, corp_same_origin.Clone(), kAllow,
-       kAllow},
+       kAllow, kAllow},
   };
 
   for (const auto& test_case : test_cases) {
@@ -291,10 +302,70 @@ TEST(CrossOriginResourcePolicyTest, WithCOEP) {
     } else {
       EXPECT_TRUE(reporter.reports().empty());
     }
+
+    reporter.ClearReports();
+    // COEP: credentialless, COEP-report-only: none
+    embedder_policy.value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    EXPECT_EQ(
+        test_case.expectation_with_coep_credentialless,
+        CrossOriginResourcePolicy::IsBlocked(
+            final_url, original_url, test_case.origin, *test_case.response_info,
+            test_case.request_mode, test_case.origin,
+            RequestDestination::kImage, embedder_policy, &reporter));
+    if (should_be_blocked_due_to_coep) {
+      ASSERT_EQ(2u, reporter.reports().size());
+      EXPECT_TRUE(reporter.reports()[0].report_only);
+      EXPECT_EQ(reporter.reports()[0].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[0].destination, RequestDestination::kImage);
+      EXPECT_FALSE(reporter.reports()[1].report_only);
+      EXPECT_EQ(reporter.reports()[1].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[1].destination, RequestDestination::kImage);
+    } else {
+      EXPECT_TRUE(reporter.reports().empty());
+    }
+
+    reporter.ClearReports();
+    // COEP: none, COEP-report-only: credentialless
+    embedder_policy.value = mojom::CrossOriginEmbedderPolicyValue::kNone;
+    embedder_policy.report_only_value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    EXPECT_EQ(
+        test_case.expectation_with_coep_none,
+        CrossOriginResourcePolicy::IsBlocked(
+            final_url, original_url, test_case.origin, *test_case.response_info,
+            test_case.request_mode, test_case.origin,
+            RequestDestination::kScript, embedder_policy, &reporter));
+    EXPECT_TRUE(reporter.reports().empty());
+
+    reporter.ClearReports();
+    // COEP: credentialless, COEP-report-only: credentialless
+    embedder_policy.value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    embedder_policy.report_only_value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    EXPECT_EQ(
+        test_case.expectation_with_coep_credentialless,
+        CrossOriginResourcePolicy::IsBlocked(
+            final_url, original_url, test_case.origin, *test_case.response_info,
+            test_case.request_mode, test_case.origin,
+            RequestDestination::kEmpty, embedder_policy, &reporter));
+    if (should_be_blocked_due_to_coep) {
+      ASSERT_EQ(1u, reporter.reports().size());
+      EXPECT_FALSE(reporter.reports()[0].report_only);
+      EXPECT_EQ(reporter.reports()[0].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[0].destination, RequestDestination::kEmpty);
+    } else {
+      EXPECT_TRUE(reporter.reports().empty());
+    }
   }
 }
 
 TEST(CrossOriginResourcePolicyTest, NavigationWithCOEP) {
+  base::test::ScopedFeatureList scoped_feature_list;
+  scoped_feature_list.InitWithFeatures(
+      {features::kCrossOriginEmbedderPolicyCredentialless}, {});
+
   mojom::URLResponseHead corp_none;
   mojom::URLResponseHead corp_same_origin;
   mojom::URLResponseHead corp_cross_origin;
@@ -328,22 +399,27 @@ TEST(CrossOriginResourcePolicyTest, NavigationWithCOEP) {
         expectation_with_coep_none;
     const absl::optional<mojom::BlockedByResponseReason>
         expectation_with_coep_require_corp;
+    const absl::optional<mojom::BlockedByResponseReason>
+        expectation_with_coep_credentialless;
   } test_cases[] = {
       // We don't have a cross-origin-resource-policy header on a response. That
       // leads to blocking when COEP: kRequireCorp is used.
       {another_origin, corp_none.Clone(), kAllow,
+       mojom::BlockedByResponseReason::
+           kCorpNotSameOriginAfterDefaultedToSameOriginByCoep,
        mojom::BlockedByResponseReason::
            kCorpNotSameOriginAfterDefaultedToSameOriginByCoep},
       // We have "cross-origin-resource-policy: same-origin",
       // COEP the response is blocked.
       {another_origin, corp_same_origin.Clone(), kAllow,
+       mojom::BlockedByResponseReason::kCorpNotSameOrigin,
        mojom::BlockedByResponseReason::kCorpNotSameOrigin},
       // We have "cross-origin-resource-policy: cross-origin", so regardless of
       // COEP the response is allowed.
-      {another_origin, corp_cross_origin.Clone(), kAllow, kAllow},
+      {another_origin, corp_cross_origin.Clone(), kAllow, kAllow, kAllow},
       // The origin of the request URL and request's origin match, so regardless
       // of COEP the response is allowed.
-      {destination_origin, corp_same_origin.Clone(), kAllow, kAllow},
+      {destination_origin, corp_same_origin.Clone(), kAllow, kAllow, kAllow},
   };
 
   for (const auto& test_case : test_cases) {
@@ -352,6 +428,9 @@ TEST(CrossOriginResourcePolicyTest, NavigationWithCOEP) {
     const bool should_be_blocked_due_to_coep =
         (test_case.expectation_with_coep_none !=
          test_case.expectation_with_coep_require_corp);
+    const bool should_be_blocked_due_to_credentialless =
+        (test_case.expectation_with_coep_none !=
+         test_case.expectation_with_coep_credentialless);
 
     // COEP: none, COEP-report-only: none
     EXPECT_EQ(test_case.expectation_with_coep_none,
@@ -419,6 +498,69 @@ TEST(CrossOriginResourcePolicyTest, NavigationWithCOEP) {
     } else {
       EXPECT_TRUE(reporter.reports().empty());
     }
+
+    reporter.ClearReports();
+    // COEP: credentialless, COEP-report-only: none
+    embedder_policy.value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    EXPECT_EQ(test_case.expectation_with_coep_credentialless,
+              CrossOriginResourcePolicy::IsNavigationBlocked(
+                  final_url, original_url, test_case.origin,
+                  *test_case.response_info, test_case.origin,
+                  RequestDestination::kImage, embedder_policy, &reporter));
+    if (should_be_blocked_due_to_credentialless) {
+      ASSERT_EQ(2u, reporter.reports().size());
+      EXPECT_TRUE(reporter.reports()[0].report_only);
+      EXPECT_EQ(reporter.reports()[0].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[0].destination, RequestDestination::kImage);
+      EXPECT_FALSE(reporter.reports()[1].report_only);
+      EXPECT_EQ(reporter.reports()[1].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[1].destination, RequestDestination::kImage);
+    } else {
+      EXPECT_TRUE(reporter.reports().empty());
+    }
+
+    reporter.ClearReports();
+    // COEP: none, COEP-report-only: credentialless
+    embedder_policy.value = mojom::CrossOriginEmbedderPolicyValue::kNone;
+    embedder_policy.report_only_value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    EXPECT_EQ(test_case.expectation_with_coep_none,
+              CrossOriginResourcePolicy::IsNavigationBlocked(
+                  final_url, original_url, test_case.origin,
+                  *test_case.response_info, test_case.origin,
+                  RequestDestination::kScript, embedder_policy, &reporter));
+    if (should_be_blocked_due_to_credentialless) {
+      ASSERT_EQ(1u, reporter.reports().size());
+      EXPECT_TRUE(reporter.reports()[0].report_only);
+      EXPECT_EQ(reporter.reports()[0].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[0].destination, RequestDestination::kScript);
+    } else {
+      EXPECT_TRUE(reporter.reports().empty());
+    }
+
+    reporter.ClearReports();
+    // COEP: credentialless, COEP-report-only: credentialless
+    embedder_policy.value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    embedder_policy.report_only_value =
+        mojom::CrossOriginEmbedderPolicyValue::kCredentialless;
+    EXPECT_EQ(test_case.expectation_with_coep_credentialless,
+              CrossOriginResourcePolicy::IsNavigationBlocked(
+                  final_url, original_url, test_case.origin,
+                  *test_case.response_info, test_case.origin,
+                  RequestDestination::kEmpty, embedder_policy, &reporter));
+    if (should_be_blocked_due_to_credentialless) {
+      ASSERT_EQ(2u, reporter.reports().size());
+      EXPECT_TRUE(reporter.reports()[0].report_only);
+      EXPECT_EQ(reporter.reports()[0].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[0].destination, RequestDestination::kEmpty);
+      EXPECT_FALSE(reporter.reports()[1].report_only);
+      EXPECT_EQ(reporter.reports()[1].blocked_url, original_url);
+      EXPECT_EQ(reporter.reports()[1].destination, RequestDestination::kEmpty);
+    } else {
+      EXPECT_TRUE(reporter.reports().empty());
+    }
   }
 }
 }  // namespace network

third_party/blink/web_tests/external/wpt/html/cross-origin-embedder-policy/credentialless/reporting-navigation.tentative.https.html

@@ -0,0 +1,136 @@
+<!doctype html>
+<html>
+<meta name="timeout" content="long">
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="./resources/common.js"></script>
+<script>
+const {ORIGIN, REMOTE_ORIGIN} = get_host_info();
+const COEP = '|header(cross-origin-embedder-policy,credentialless)';
+const COEP_RO =
+  '|header(cross-origin-embedder-policy-report-only,credentialless)';
+const CORP_CROSS_ORIGIN =
+  '|header(cross-origin-resource-policy,cross-origin)';
+const FRAME_URL = `${ORIGIN}/common/blank.html?pipe=`;
+const REMOTE_FRAME_URL = `${REMOTE_ORIGIN}/common/blank.html?pipe=`;
+
+function checkCorpReport(report, contextUrl, blockedUrl, disposition) {
+  assert_equals(report.type, 'coep');
+  assert_equals(report.url, contextUrl);
+  assert_equals(report.body.type, 'corp');
+  assert_equals(report.body.blockedURL, blockedUrl);
+  assert_equals(report.body.disposition, disposition);
+  assert_equals(report.body.destination, 'iframe');
+}
+
+function checkCoepMismatchReport(report, contextUrl, blockedUrl, disposition) {
+  assert_equals(report.type, 'coep');
+  assert_equals(report.url, contextUrl);
+  assert_equals(report.body.type, 'navigation');
+  assert_equals(report.body.blockedURL, blockedUrl);
+  assert_equals(report.body.disposition, disposition);
+}
+
+function loadFrame(document, url) {
+  return new Promise((resolve, reject) => {
+    const frame = document.createElement('iframe');
+    frame.src = url;
+    frame.onload = () => resolve(frame);
+    frame.onerror = reject;
+    document.body.appendChild(frame);
+  });
+}
+
+// |parentSuffix| is a suffix for the parent frame URL.
+// |targetUrl| is a URL for the target frame.
+async function loadFrames(test, parentSuffix, targetUrl) {
+  const frame = await loadFrame(document, FRAME_URL + parentSuffix);
+  test.add_cleanup(() => frame.remove());
+  // Here we don't need "await". This loading may or may not succeed, and
+  // we're not interested in the result.
+  loadFrame(frame.contentDocument, targetUrl);
+
+  return frame;
+}
+
+async function observeReports(global) {
+  const reports = [];
+  const observer = new global.ReportingObserver((rs) => {
+    for (const r of rs) {
+      reports.push(r.toJSON());
+    }
+  });
+  observer.observe();
+
+  // Wait 1000ms for reports to settle.
+  await new Promise(r => step_timeout(r, 1000));
+  return reports;
+}
+
+function desc(headers) {
+  return headers === '' ? '(none)' : headers;
+}
+
+// CASES is a list of test case. Each test case consists of:
+//   parent_headers: the suffix of the URL of the parent frame.
+//   target_headers: the suffix of the URL of the target frame.
+//   expected_reports: one of:
+//     'CORP':    CORP violation
+//     'CORP-RO': CORP violation (report only)
+//     'NAV':     COEP mismatch between the frames.
+//     'NAV-RO':  COEP mismatch between the frames (report only).
+const reportingTest = function(
+  parent_headers, target_headers, expected_reports) {
+  // These tests are very slow, so they must be run in parallel using
+  // async_test.
+  promise_test_parallel(async t => {
+    const targetUrl = REMOTE_FRAME_URL + target_headers;
+    const parent = await loadFrames(t, parent_headers, targetUrl);
+    const contextUrl = parent.src ? parent.src : 'about:blank';
+    const reports = await observeReports(parent.contentWindow);
+    assert_equals(reports.length, expected_reports.length);
+    for (let i = 0; i < reports.length; i += 1) {
+      const report = reports[i];
+      switch (expected_reports[i]) {
+        case 'CORP':
+          checkCorpReport(report, contextUrl, targetUrl, 'enforce');
+          break;
+        case 'CORP-RO':
+          checkCorpReport(report, contextUrl, targetUrl, 'reporting');
+          break;
+        case 'NAV':
+          checkCoepMismatchReport(report, contextUrl, targetUrl, 'enforce');
+          break;
+        case 'NAV-RO':
+          checkCoepMismatchReport(report, contextUrl, targetUrl, 'reporting');
+          break;
+        default:
+          assert_unreached(
+            'Unexpected report exception: ' + expected_reports[i]);
+      }
+    }
+  }, `parent: ${desc(parent_headers)}, target: ${desc(target_headers)}, `);
+}
+
+reportingTest('', '', []);
+reportingTest('', COEP, []);
+reportingTest(COEP, COEP, ['CORP']);
+reportingTest(COEP, '', ['CORP']);
+
+reportingTest('', CORP_CROSS_ORIGIN, []);
+reportingTest(COEP, CORP_CROSS_ORIGIN, ['NAV']);
+
+reportingTest('', COEP + CORP_CROSS_ORIGIN, []);
+reportingTest(COEP, COEP + CORP_CROSS_ORIGIN, []);
+
+reportingTest(COEP_RO, COEP, ['CORP-RO']);
+reportingTest(COEP_RO, '', ['CORP-RO', 'NAV-RO']);
+reportingTest(COEP_RO, CORP_CROSS_ORIGIN, ['NAV-RO']);
+reportingTest(COEP_RO, COEP + CORP_CROSS_ORIGIN, []);
+
+reportingTest(COEP, COEP_RO + CORP_CROSS_ORIGIN, ['NAV']);
+
+</script>
+</body></html>

third_party/blink/web_tests/external/wpt/html/cross-origin-embedder-policy/credentialless/reporting-subresource-corp.tentative.https.html

@@ -0,0 +1,202 @@
+<!doctype html>
+<html>
+<meta name="timeout" content="long">
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
+<script>
+const {ORIGIN, REMOTE_ORIGIN} = get_host_info();
+const BASE = "/html/cross-origin-embedder-policy/resources";
+const FRAME_URL = `${ORIGIN}/common/blank.html` +
+  '?pipe=header(cross-origin-embedder-policy,credentialless)' +
+  `|header(cross-origin-embedder-policy-report-only,credentialless)`;
+const WORKER_URL = `${ORIGIN}${BASE}/reporting-worker.js` +
+  '?pipe=header(cross-origin-embedder-policy,credentialless)' +
+  `|header(cross-origin-embedder-policy-report-only,credentialless)`;
+const REPORTING_FRAME_URL = `${ORIGIN}${BASE}/reporting-empty-frame.html` +
+  '?pipe=header(cross-origin-embedder-policy,credentialless)' +
+  `|header(cross-origin-embedder-policy-report-only,credentialless)`;
+
+function wait(ms) {
+  return new Promise(resolve => step_timeout(resolve, ms));
+}
+
+async function fetchInFrame(t, frameUrl, url) {
+  const reports = [];
+  const frame = await with_iframe(frameUrl);
+  t.add_cleanup(() => frame.remove());
+
+  const observer = new frame.contentWindow.ReportingObserver((rs) => {
+    for (const report of rs) {
+      reports.push(report.toJSON());
+    }
+  });
+  observer.observe();
+  const init = { mode: 'no-cors', cache: 'no-store' };
+  await frame.contentWindow.fetch(url, init).catch(() => {});
+
+  // Wait 1000ms for reports to settle.
+  await new Promise(r => step_timeout(r, 1000));
+  return reports;
+}
+
+async function fetchInWorker(workerOrPort, url) {
+  const script =
+    `fetch('${url}', {mode: 'no-cors', cache: 'no-store'}).catch(() => {});`;
+  const mc = new MessageChannel();
+  workerOrPort.postMessage({script, port: mc.port2}, [mc.port2]);
+  return (await new Promise(r => mc.port1.onmessage = r)).data;
+}
+
+function checkReport(report, contextUrl, blockedUrl, disposition, destination) {
+  assert_equals(report.type, 'coep');
+  assert_equals(report.url, contextUrl);
+  assert_equals(report.body.type, 'corp');
+  assert_equals(report.body.blockedURL, blockedUrl);
+  assert_equals(report.body.disposition, disposition);
+  assert_equals(report.body.destination, destination);
+}
+
+// We want to test several URLs in various environments (document,
+// dedicated worker, shared worker, service worker). As expectations
+// are independent of environment except for the context URLs in reports,
+// we define ENVIRONMENTS and CASES to reduce the code duplication.
+//
+// ENVIRONMENTS is a list of dictionaries. Each dictionary consists of:
+//  - tag: the name of the environment
+//  - contextUrl: the URL of the environment settings object
+//  - run: an async function which generates reports
+//    - test: a testharness Test object
+//    - url: the URL for a test case (see below)
+//
+// CASES is a list of test cases. Each test case consists of:
+//  - name: the name of the test case
+//  - url: the URL of the test case
+//  - check: a function to check the results
+//    - reports: the generated reports
+//    - url: the URL of the test case
+//    - contextUrl: the URL of the environment settings object (see
+//                  ENVORONMENTS)
+
+const ENVIRONMENTS = [{
+  tag: 'document',
+  contextUrl: FRAME_URL,
+  run: async (test, url) => {
+    return await fetchInFrame(test, FRAME_URL, url);
+  },
+}, {
+  tag: 'dedicated worker',
+  contextUrl: WORKER_URL,
+  run: async (test, url) => {
+    const worker = new Worker(WORKER_URL);
+    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
+    test.add_cleanup(() => worker.terminate());
+    return await fetchInWorker(worker, url);
+  },
+}, {
+  tag: 'shared worker',
+  contextUrl: WORKER_URL,
+  run: async (test, url) => {
+    const worker = new SharedWorker(WORKER_URL);
+    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
+    return await fetchInWorker(worker.port, url);
+  },
+}, {
+  tag: 'service worker',
+  contextUrl: WORKER_URL,
+  run: async (test, url) => {
+    // Generate a one-time scope for service workeer.
+    const SCOPE = `${BASE}/${token()}.html`;
+    const reg =
+      await service_worker_unregister_and_register(test, WORKER_URL, SCOPE);
+    test.add_cleanup(() => reg.unregister());
+    const worker = reg.installing || reg.waiting || reg.active;
+    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
+    return await fetchInWorker(worker, url);
+  },
+}, {
+  tag: 'between service worker and page',
+  contextUrl: REPORTING_FRAME_URL,
+  run: async (test, url) => {
+    // Service Worker without COEP.
+    const WORKER_URL = `${ORIGIN}${BASE}/sw.js`;
+    const reg = await service_worker_unregister_and_register(
+      test, WORKER_URL, REPORTING_FRAME_URL);
+    test.add_cleanup(() => reg.unregister());
+    const worker = reg.installing || reg.waiting || reg.active;
+    worker.addEventListener('error', test.unreached_func('Worker.onerror'));
+    return await fetchInFrame(
+      test, REPORTING_FRAME_URL, url);
+  },
+}];
+
+const CASES = [{
+  name: 'same-origin',
+  url: '/common/text-plain.txt',
+  check: (reports, url, contextUrl) => {
+    assert_equals(reports.length, 0);
+  }
+}, {
+  name: 'blocked by CORP: same-origin',
+  url: `${REMOTE_ORIGIN}${BASE}/nothing-same-origin-corp.txt`,
+  check: (reports, url, contextUrl) => {
+    assert_equals(reports.length, 0);
+  }
+}, {
+  name: 'blocked due to COEP',
+  url: `${REMOTE_ORIGIN}/common/text-plain.txt`,
+  check: (reports, contextUrl, url) => {
+    assert_equals(reports.length, 0);
+  }
+}, {
+  name: 'blocked during redirect',
+  url: `${ORIGIN}/common/redirect.py?location=` +
+       encodeURIComponent(`${REMOTE_ORIGIN}/common/text-plain.txt`),
+  check: (reports, contextUrl, url) => {
+    // The redirection is blocked because CORP is required on the response here
+    // according to https://github.com/w3c/ServiceWorker/issues/1592
+    if (contextUrl === REPORTING_FRAME_URL) {
+      assert_equals(reports.length, 1);
+      checkReport(reports[0], contextUrl, url, 'enforce', '');
+    } else {
+      assert_equals(reports.length, 0);
+    }
+  },
+}];
+
+for (const env of ENVIRONMENTS) {
+  for (const testcase of CASES) {
+    promise_test(async (t) => {
+      const reports = await env.run(t, testcase.url);
+      testcase.check(reports, env.contextUrl, testcase.url);
+    }, `[${env.tag}] ${testcase.name}`);
+  }
+}
+
+// A test for a non-empty destination.
+promise_test(async (t) => {
+  const reports = [];
+  const frame = await with_iframe(FRAME_URL);
+  t.add_cleanup(() => frame.remove());
+
+  const observer = new frame.contentWindow.ReportingObserver((rs) => {
+    for (const report of rs) {
+      reports.push(report.toJSON());
+    }
+  });
+  observer.observe();
+  const url = `${REMOTE_ORIGIN}/common/utils.js`;
+  const script = frame.contentDocument.createElement('script');
+  script.src = url;
+  frame.contentDocument.body.appendChild(script);
+
+  // Wait 200ms for reports to settle.
+  await t.step_timeout(200);
+
+  assert_equals(reports.length, 0);
+}, 'destination: script');
+
+</script>

third_party/blink/web_tests/external/wpt/html/cross-origin-embedder-policy/reporting-subresource-corp.https.html

@@ -16,6 +16,9 @@ const FRAME_URL = `${ORIGIN}/common/blank.html` +
 const WORKER_URL = `${ORIGIN}${BASE}/reporting-worker.js` +
   '?pipe=header(cross-origin-embedder-policy,require-corp)' +
   `|header(cross-origin-embedder-policy-report-only,require-corp)`;
+const REPORTING_FRAME_URL = `${ORIGIN}${BASE}/reporting-empty-frame.html` +
+  '?pipe=header(cross-origin-embedder-policy,require-corp)' +
+  `|header(cross-origin-embedder-policy-report-only,require-corp)`;
 
 function wait(ms) {
   return new Promise(resolve => step_timeout(resolve, ms));
@@ -117,18 +120,17 @@ const ENVIRONMENTS = [{
   },
 }, {
   tag: 'between service worker and page',
-  contextUrl: `${ORIGIN}${BASE}/reporting-empty-frame.html`,
+  contextUrl: REPORTING_FRAME_URL,
   run: async (test, url) => {
-    const SCOPE = `${BASE}/reporting-empty-frame.html`;
     // Here we use a Service Worker without COEP.
     const WORKER_URL = `${ORIGIN}${BASE}/sw.js`;
-    const reg =
-      await service_worker_unregister_and_register(test, WORKER_URL, SCOPE);
+    const reg = await service_worker_unregister_and_register(
+      test, WORKER_URL, REPORTING_FRAME_URL);
     test.add_cleanup(() => reg.unregister());
     const worker = reg.installing || reg.waiting || reg.active;
     worker.addEventListener('error', test.unreached_func('Worker.onerror'));
     return await fetchInFrame(
-      test, `${ORIGIN}${BASE}/reporting-empty-frame.html`, url);
+      test, REPORTING_FRAME_URL, url);
   },
 }];
 

third_party/blink/web_tests/external/wpt/html/cross-origin-embedder-policy/reporting-to-endpoint.https.html

@@ -21,6 +21,9 @@
 // .
 const { REMOTE_ORIGIN } = get_host_info();
 const BASE = new URL("resources", location).pathname
+const FRAME_URL = `resources/reporting-empty-frame.html` +
+  `?pipe=header(cross-origin-embedder-policy,require-corp;report-to="endpoint")` +
+  `|header(cross-origin-embedder-policy-report-only,require-corp;report-to="report-only-endpoint")`;
 
 function wait(ms) {
   return new Promise(resolve => step_timeout(resolve, ms));
@@ -65,7 +68,6 @@ async function checkNavigationReportExistence(endpoint, blockedUrl, contextUrl,
   const retryDelay = 200;
   for (let i = 0; i * retryDelay < timeout; i++) {
     const reports = await fetchReports(endpoint);
-
     for (const report of reports) {
       if (report.type !== 'coep' || report.url !== contextUrl ||
           report.body.type !== 'navigation') {
@@ -85,7 +87,7 @@ promise_test(async t => {
   const iframe = document.createElement('iframe');
   t.add_cleanup(() => iframe.remove());
 
-  iframe.src = `resources/reporting-empty-frame.html`
+  iframe.src = FRAME_URL
   document.body.appendChild(iframe);
   await new Promise(resolve => {
     iframe.addEventListener('load', resolve, {once: true});
@@ -106,7 +108,7 @@ promise_test(async t => {
   const iframe = document.createElement('iframe');
   t.add_cleanup(() => iframe.remove());
 
-  iframe.src = `resources/reporting-empty-frame.html`
+  iframe.src = FRAME_URL
   document.body.appendChild(iframe);
   await new Promise(resolve => {
     iframe.addEventListener('load', resolve, {once: true});
@@ -135,7 +137,7 @@ promise_test(async (t) => {
   const iframe = document.createElement('iframe');
   t.add_cleanup(() => iframe.remove());
 
-  iframe.src = 'resources/reporting-empty-frame.html';
+  iframe.src = FRAME_URL;
   const targetUrl = `/common/blank.html?${token()}`;
   iframe.addEventListener('load', t.step_func(() => {
     const nested = iframe.contentDocument.createElement('iframe');

third_party/blink/web_tests/external/wpt/html/cross-origin-embedder-policy/resources/reporting-empty-frame.html.headers

@@ -1,2 +0,0 @@
-cross-origin-embedder-policy: require-corp; report-to="endpoint"
-cross-origin-embedder-policy-report-only: require-corp; report-to="report-only-endpoint"