1 files changed, 209 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/private-network-access/window-open-existing.tentative.https.window.js b/testing/web-platform/tests/fetch/private-network-access/window-open-existing.tentative.https.window.js
new file mode 100644
index 0000000000..6a2a624fc8
--- /dev/null
+++ b/testing/web-platform/tests/fetch/private-network-access/window-open-existing.tentative.https.window.js
@@ -0,0 +1,209 @@
+// META: script=/common/subset-tests-by-key.js
+// META: script=/common/dispatcher/dispatcher.js
+// META: script=/common/utils.js
+// META: script=resources/support.sub.js
+// META: timeout=long
+// META: variant=?include=from-local
+// META: variant=?include=from-private
+// META: variant=?include=from-public
+// META: variant=?include=from-treat-as-public
+//
+// These tests verify that secure contexts can navigate to less-public address
+// spaces via window.open to an existing window iff the target server responds
+// affirmatively to preflight requests.
+
+setup(() => {
+  assert_true(window.isSecureContext);
+});
+
+// Source: secure local context.
+//
+// All fetches unaffected by Private Network Access.
+
+subsetTestByKey(
+    'from-local', promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {server: Server.HTTPS_LOCAL},
+      target: {server: Server.HTTPS_LOCAL},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'local to local: no preflight required.');
+
+subsetTestByKey(
+    'from-local', promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {server: Server.HTTPS_LOCAL},
+      target: {server: Server.HTTPS_PRIVATE},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'local to private: no preflight required.');
+
+subsetTestByKey(
+    'from-local', promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {server: Server.HTTPS_LOCAL},
+      target: {server: Server.HTTPS_PUBLIC},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'local to public: no preflight required.');
+
+// Generates tests of preflight behavior for a single (source, target) pair.
+//
+// Scenarios:
+//
+//   - preflight response has non-2xx HTTP code
+//   - preflight response is missing CORS headers
+//   - preflight response is missing the PNA-specific `Access-Control` header
+//   - success
+//
+function makePreflightTests({
+  key,
+  sourceName,
+  sourceServer,
+  sourceTreatAsPublic,
+  targetName,
+  targetServer,
+}) {
+  const prefix =
+      `${sourceName} to ${targetName}: `;
+
+  const source = {
+    server: sourceServer,
+    treatAsPublic: sourceTreatAsPublic,
+  };
+
+  promise_test_parallel(t => windowOpenExistingTest(t, {
+    source,
+    target: {
+      server: targetServer,
+      behavior: { preflight: PreflightBehavior.failure() },
+    },
+    expected: NavigationTestResult.FAILURE,
+  }), prefix + "failed preflight.");
+
+  promise_test_parallel(t => windowOpenExistingTest(t, {
+    source,
+    target: {
+      server: targetServer,
+      behavior: { preflight: PreflightBehavior.noCorsHeader(token()) },
+    },
+    expected: NavigationTestResult.FAILURE,
+  }), prefix + "missing CORS headers.");
+
+  promise_test_parallel(t => windowOpenExistingTest(t, {
+    source,
+    target: {
+      server: targetServer,
+      behavior: { preflight: PreflightBehavior.noPnaHeader(token()) },
+    },
+    expected: NavigationTestResult.FAILURE,
+  }), prefix + "missing PNA header.");
+
+  promise_test_parallel(t => windowOpenExistingTest(t, {
+    source,
+    target: {
+      server: targetServer,
+      behavior: { preflight: PreflightBehavior.navigation(token()) },
+    },
+    expected: NavigationTestResult.SUCCESS,
+  }), prefix + "success.");
+}
+
+// Source: private secure context.
+//
+// Navigating to the local address space require a successful preflight response
+// carrying a PNA-specific header.
+
+subsetTestByKey('from-private', makePreflightTests, {
+  sourceServer: Server.HTTPS_PRIVATE,
+  sourceName: 'private',
+  targetServer: Server.HTTPS_LOCAL,
+  targetName: 'local',
+});
+
+subsetTestByKey(
+    'from-private', promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {server: Server.HTTPS_PRIVATE},
+      target: {server: Server.HTTPS_PRIVATE},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'private to private: no preflight required.');
+
+subsetTestByKey(
+    'from-private', promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {server: Server.HTTPS_PRIVATE},
+      target: {server: Server.HTTPS_PUBLIC},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'private to public: no preflight required.');
+
+// Source: public secure context.
+//
+// Navigating to the local and private address spaces require a successful
+// preflight response carrying a PNA-specific header.
+
+subsetTestByKey('from-public', makePreflightTests, {
+  sourceServer: Server.HTTPS_PUBLIC,
+  sourceName: "public",
+  targetServer: Server.HTTPS_LOCAL,
+  targetName: "local",
+});
+
+subsetTestByKey('from-public', makePreflightTests, {
+  sourceServer: Server.HTTPS_PUBLIC,
+  sourceName: "public",
+  targetServer: Server.HTTPS_PRIVATE,
+  targetName: "private",
+});
+
+subsetTestByKey(
+    'from-public', promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {server: Server.HTTPS_PUBLIC},
+      target: {server: Server.HTTPS_PUBLIC},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'public to public: no preflight required.');
+
+// The following tests verify that `CSP: treat-as-public-address` makes
+// documents behave as if they had been served from a public IP address.
+
+subsetTestByKey('from-treat-as-public', makePreflightTests, {
+  sourceServer: Server.HTTPS_LOCAL,
+  sourceTreatAsPublic: true,
+  sourceName: "treat-as-public-address",
+  targetServer: Server.OTHER_HTTPS_LOCAL,
+  targetName: "local",
+});
+
+subsetTestByKey("from-treat-as-public", promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {
+        server: Server.HTTPS_LOCAL,
+        treatAsPublic: true,
+      },
+      target: {server: Server.HTTPS_LOCAL},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'treat-as-public-address to local (same-origin): no preflight required.');
+
+subsetTestByKey('from-treat-as-public', makePreflightTests, {
+  sourceServer: Server.HTTPS_LOCAL,
+  sourceTreatAsPublic: true,
+  sourceName: 'treat-as-public-address',
+  targetServer: Server.HTTPS_PRIVATE,
+  targetName: 'private',
+});
+
+subsetTestByKey("from-treat-as-public", promise_test_parallel,
+    t => windowOpenExistingTest(t, {
+      source: {
+        server: Server.HTTPS_LOCAL,
+        treatAsPublic: true,
+      },
+      target: {server: Server.HTTPS_PUBLIC},
+      expected: NavigationTestResult.SUCCESS,
+    }),
+    'treat-as-public-address to public: no preflight required.');