diff --git a/service-workers/service-worker/tentative/static-router/resources/direct.txt b/service-workers/service-worker/tentative/static-router/resources/direct.txt
new file mode 100644
index 000000000000000..f3d9861c137b2dd
--- /dev/null
+++ b/service-workers/service-worker/tentative/static-router/resources/direct.txt
@@ -0,0 +1 @@
+Network
diff --git a/service-workers/service-worker/tentative/static-router/resources/simple.html b/service-workers/service-worker/tentative/static-router/resources/simple.html
new file mode 100644
index 000000000000000..0c3e3e78707b14d
--- /dev/null
+++ b/service-workers/service-worker/tentative/static-router/resources/simple.html
@@ -0,0 +1,3 @@
+
+Simple
+Here's a simple html file.
diff --git a/service-workers/service-worker/tentative/static-router/resources/static-router-sw.js b/service-workers/service-worker/tentative/static-router/resources/static-router-sw.js
new file mode 100644
index 000000000000000..deb7a3e0b47c58f
--- /dev/null
+++ b/service-workers/service-worker/tentative/static-router/resources/static-router-sw.js
@@ -0,0 +1,19 @@
+'use strict';
+
+self.addEventListener('install', e => {
+ e.registerRouter({
+ condition: {urlPattern: "*.txt"},
+ source: "network"
+ });
+ self.skipWaiting();
+});
+
+self.addEventListener('activate', e => {
+ e.waitUntil(clients.claim());
+});
+
+self.addEventListener('fetch', function(event) {
+ const url = new URL(event.request.url);
+ const nonce = url.searchParams.get('nonce');
+ event.respondWith(new Response(nonce));
+});
diff --git a/service-workers/service-worker/tentative/static-router/resources/test-helpers.sub.js b/service-workers/service-worker/tentative/static-router/resources/test-helpers.sub.js
new file mode 100644
index 000000000000000..74301523e7355ad
--- /dev/null
+++ b/service-workers/service-worker/tentative/static-router/resources/test-helpers.sub.js
@@ -0,0 +1,300 @@
+// Adapter for testharness.js-style tests with Service Workers
+
+/**
+ * @param options an object that represents RegistrationOptions except for scope.
+ * @param options.type a WorkerType.
+ * @param options.updateViaCache a ServiceWorkerUpdateViaCache.
+ * @see https://w3c.github.io/ServiceWorker/#dictdef-registrationoptions
+ */
+function service_worker_unregister_and_register(test, url, scope, options) {
+ if (!scope || scope.length == 0)
+ return Promise.reject(new Error('tests must define a scope'));
+
+ if (options && options.scope)
+ return Promise.reject(new Error('scope must not be passed in options'));
+
+ options = Object.assign({ scope: scope }, options);
+ return service_worker_unregister(test, scope)
+ .then(function() {
+ return navigator.serviceWorker.register(url, options);
+ })
+ .catch(unreached_rejection(test,
+ 'unregister and register should not fail'));
+}
+
+// This unregisters the registration that precisely matches scope. Use this
+// when unregistering by scope. If no registration is found, it just resolves.
+function service_worker_unregister(test, scope) {
+ var absoluteScope = (new URL(scope, window.location).href);
+ return navigator.serviceWorker.getRegistration(scope)
+ .then(function(registration) {
+ if (registration && registration.scope === absoluteScope)
+ return registration.unregister();
+ })
+ .catch(unreached_rejection(test, 'unregister should not fail'));
+}
+
+function service_worker_unregister_and_done(test, scope) {
+ return service_worker_unregister(test, scope)
+ .then(test.done.bind(test));
+}
+
+function unreached_fulfillment(test, prefix) {
+ return test.step_func(function(result) {
+ var error_prefix = prefix || 'unexpected fulfillment';
+ assert_unreached(error_prefix + ': ' + result);
+ });
+}
+
+// Rejection-specific helper that provides more details
+function unreached_rejection(test, prefix) {
+ return test.step_func(function(error) {
+ var reason = error.message || error.name || error;
+ var error_prefix = prefix || 'unexpected rejection';
+ assert_unreached(error_prefix + ': ' + reason);
+ });
+}
+
+/**
+ * Adds an iframe to the document and returns a promise that resolves to the
+ * iframe when it finishes loading. The caller is responsible for removing the
+ * iframe later if needed.
+ *
+ * @param {string} url
+ * @returns {HTMLIFrameElement}
+ */
+function with_iframe(url) {
+ return new Promise(function(resolve) {
+ var frame = document.createElement('iframe');
+ frame.className = 'test-iframe';
+ frame.src = url;
+ frame.onload = function() { resolve(frame); };
+ document.body.appendChild(frame);
+ });
+}
+
+function normalizeURL(url) {
+ return new URL(url, self.location).toString().replace(/#.*$/, '');
+}
+
+function wait_for_update(test, registration) {
+ if (!registration || registration.unregister == undefined) {
+ return Promise.reject(new Error(
+ 'wait_for_update must be passed a ServiceWorkerRegistration'));
+ }
+
+ return new Promise(test.step_func(function(resolve) {
+ var handler = test.step_func(function() {
+ registration.removeEventListener('updatefound', handler);
+ resolve(registration.installing);
+ });
+ registration.addEventListener('updatefound', handler);
+ }));
+}
+
+// Return true if |state_a| is more advanced than |state_b|.
+function is_state_advanced(state_a, state_b) {
+ if (state_b === 'installing') {
+ switch (state_a) {
+ case 'installed':
+ case 'activating':
+ case 'activated':
+ case 'redundant':
+ return true;
+ }
+ }
+
+ if (state_b === 'installed') {
+ switch (state_a) {
+ case 'activating':
+ case 'activated':
+ case 'redundant':
+ return true;
+ }
+ }
+
+ if (state_b === 'activating') {
+ switch (state_a) {
+ case 'activated':
+ case 'redundant':
+ return true;
+ }
+ }
+
+ if (state_b === 'activated') {
+ switch (state_a) {
+ case 'redundant':
+ return true;
+ }
+ }
+ return false;
+}
+
+function wait_for_state(test, worker, state) {
+ if (!worker || worker.state == undefined) {
+ return Promise.reject(new Error(
+ 'wait_for_state needs a ServiceWorker object to be passed.'));
+ }
+ if (worker.state === state)
+ return Promise.resolve(state);
+
+ if (is_state_advanced(worker.state, state)) {
+ return Promise.reject(new Error(
+ `Waiting for ${state} but the worker is already ${worker.state}.`));
+ }
+ return new Promise(test.step_func(function(resolve, reject) {
+ worker.addEventListener('statechange', test.step_func(function() {
+ if (worker.state === state)
+ resolve(state);
+
+ if (is_state_advanced(worker.state, state)) {
+ reject(new Error(
+ `The state of the worker becomes ${worker.state} while waiting` +
+ `for ${state}.`));
+ }
+ }));
+ }));
+}
+
+// Declare a test that runs entirely in the ServiceWorkerGlobalScope. The |url|
+// is the service worker script URL. This function:
+// - Instantiates a new test with the description specified in |description|.
+// The test will succeed if the specified service worker can be successfully
+// registered and installed.
+// - Creates a new ServiceWorker registration with a scope unique to the current
+// document URL. Note that this doesn't allow more than one
+// service_worker_test() to be run from the same document.
+// - Waits for the new worker to begin installing.
+// - Imports tests results from tests running inside the ServiceWorker.
+function service_worker_test(url, description) {
+ // If the document URL is https://example.com/document and the script URL is
+ // https://example.com/script/worker.js, then the scope would be
+ // https://example.com/script/scope/document.
+ var scope = new URL('scope' + window.location.pathname,
+ new URL(url, window.location)).toString();
+ promise_test(function(test) {
+ return service_worker_unregister_and_register(test, url, scope)
+ .then(function(registration) {
+ add_completion_callback(function() {
+ registration.unregister();
+ });
+ return wait_for_update(test, registration)
+ .then(function(worker) {
+ return fetch_tests_from_worker(worker);
+ });
+ });
+ }, description);
+}
+
+function base_path() {
+ return location.pathname.replace(/\/[^\/]*$/, '/');
+}
+
+function test_login(test, origin, username, password, cookie) {
+ return new Promise(function(resolve, reject) {
+ with_iframe(
+ origin + base_path() +
+ 'resources/fetch-access-control-login.html')
+ .then(test.step_func(function(frame) {
+ var channel = new MessageChannel();
+ channel.port1.onmessage = test.step_func(function() {
+ frame.remove();
+ resolve();
+ });
+ frame.contentWindow.postMessage(
+ {username: username, password: password, cookie: cookie},
+ origin, [channel.port2]);
+ }));
+ });
+}
+
+function test_websocket(test, frame, url) {
+ return new Promise(function(resolve, reject) {
+ var ws = new frame.contentWindow.WebSocket(url, ['echo', 'chat']);
+ var openCalled = false;
+ ws.addEventListener('open', test.step_func(function(e) {
+ assert_equals(ws.readyState, 1, "The WebSocket should be open");
+ openCalled = true;
+ ws.close();
+ }), true);
+
+ ws.addEventListener('close', test.step_func(function(e) {
+ assert_true(openCalled, "The WebSocket should be closed after being opened");
+ resolve();
+ }), true);
+
+ ws.addEventListener('error', reject);
+ });
+}
+
+function login_https(test) {
+ var host_info = get_host_info();
+ return test_login(test, host_info.HTTPS_REMOTE_ORIGIN,
+ 'username1s', 'password1s', 'cookie1')
+ .then(function() {
+ return test_login(test, host_info.HTTPS_ORIGIN,
+ 'username2s', 'password2s', 'cookie2');
+ });
+}
+
+function websocket(test, frame) {
+ return test_websocket(test, frame, get_websocket_url());
+}
+
+function get_websocket_url() {
+ return 'wss://{{host}}:{{ports[wss][0]}}/echo';
+}
+
+// The navigator.serviceWorker.register() method guarantees that the newly
+// installing worker is available as registration.installing when its promise
+// resolves. However some tests test installation using a element where
+// it is possible for the installing worker to have already become the waiting
+// or active worker. So this method is used to get the newest worker when these
+// tests need access to the ServiceWorker itself.
+function get_newest_worker(registration) {
+ if (registration.installing)
+ return registration.installing;
+ if (registration.waiting)
+ return registration.waiting;
+ if (registration.active)
+ return registration.active;
+}
+
+function register_using_link(script, options) {
+ var scope = options.scope;
+ var link = document.createElement('link');
+ link.setAttribute('rel', 'serviceworker');
+ link.setAttribute('href', script);
+ link.setAttribute('scope', scope);
+ document.getElementsByTagName('head')[0].appendChild(link);
+ return new Promise(function(resolve, reject) {
+ link.onload = resolve;
+ link.onerror = reject;
+ })
+ .then(() => navigator.serviceWorker.getRegistration(scope));
+}
+
+function with_sandboxed_iframe(url, sandbox) {
+ return new Promise(function(resolve) {
+ var frame = document.createElement('iframe');
+ frame.sandbox = sandbox;
+ frame.src = url;
+ frame.onload = function() { resolve(frame); };
+ document.body.appendChild(frame);
+ });
+}
+
+// Registers, waits for activation, then unregisters on a sample scope.
+//
+// This can be used to wait for a period of time needed to register,
+// activate, and then unregister a service worker. When checking that
+// certain behavior does *NOT* happen, this is preferable to using an
+// arbitrary delay.
+async function wait_for_activation_on_sample_scope(t, window_or_workerglobalscope) {
+ const script = '/service-workers/service-worker/resources/empty-worker.js';
+ const scope = 'resources/there/is/no/there/there?' + Date.now();
+ let registration = await window_or_workerglobalscope.navigator.serviceWorker.register(script, { scope });
+ await wait_for_state(t, registration.installing, 'activated');
+ await registration.unregister();
+}
+
diff --git a/service-workers/service-worker/tentative/static-router/static-router-subresource.https.html b/service-workers/service-worker/tentative/static-router/static-router-subresource.https.html
new file mode 100644
index 000000000000000..721c2797603bb56
--- /dev/null
+++ b/service-workers/service-worker/tentative/static-router/static-router-subresource.https.html
@@ -0,0 +1,48 @@
+
+
+Static Router: simply skip fetch handler if pattern matches
+
+
+
+
+
+