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@ -2,22 +2,22 @@
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/* tslint:disable */
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/**
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* Mock Service Worker (0.36.3).
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* Mock Service Worker (2.0.11).
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* @see https://github.com/mswjs/msw
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* - Please do NOT modify this file.
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* - Please do NOT serve this file on production.
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*/
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const INTEGRITY_CHECKSUM = '02f4ad4a2797f85668baf196e553d929';
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const bypassHeaderName = 'x-msw-bypass';
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const INTEGRITY_CHECKSUM = 'c5f7f8e188b673ea4e677df7ea3c5a39';
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const IS_MOCKED_RESPONSE = Symbol('isMockedResponse');
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const activeClientIds = new Set();
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self.addEventListener('install', function () {
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return self.skipWaiting();
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self.skipWaiting();
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});
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self.addEventListener('activate', async function (event) {
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return self.clients.claim();
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self.addEventListener('activate', function (event) {
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event.waitUntil(self.clients.claim());
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});
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self.addEventListener('message', async function (event) {
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@ -33,7 +33,9 @@ self.addEventListener('message', async function (event) {
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return;
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}
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const allClients = await self.clients.matchAll();
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const allClients = await self.clients.matchAll({
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type: 'window',
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});
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switch (event.data) {
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case 'KEEPALIVE_REQUEST': {
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@ -83,18 +85,79 @@ self.addEventListener('message', async function (event) {
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}
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});
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// Resolve the "main" client for the given event.
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self.addEventListener('fetch', function (event) {
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const { request } = event;
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// Bypass navigation requests.
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if (request.mode === 'navigate') {
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return;
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}
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// Opening the DevTools triggers the "only-if-cached" request
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// that cannot be handled by the worker. Bypass such requests.
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if (request.cache === 'only-if-cached' && request.mode !== 'same-origin') {
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return;
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}
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// Bypass all requests when there are no active clients.
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// Prevents the self-unregistered worked from handling requests
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// after it's been deleted (still remains active until the next reload).
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if (activeClientIds.size === 0) {
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return;
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}
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// Generate unique request ID.
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const requestId = crypto.randomUUID();
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event.respondWith(handleRequest(event, requestId));
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});
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async function handleRequest(event, requestId) {
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const client = await resolveMainClient(event);
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const response = await getResponse(event, client, requestId);
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// Send back the response clone for the "response:*" life-cycle events.
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// Ensure MSW is active and ready to handle the message, otherwise
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// this message will pend indefinitely.
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if (client && activeClientIds.has(client.id)) {
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(async function () {
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const responseClone = response.clone();
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sendToClient(
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client,
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{
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type: 'RESPONSE',
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payload: {
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requestId,
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isMockedResponse: IS_MOCKED_RESPONSE in response,
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type: responseClone.type,
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status: responseClone.status,
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statusText: responseClone.statusText,
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body: responseClone.body,
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headers: Object.fromEntries(responseClone.headers.entries()),
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},
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},
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[responseClone.body]
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);
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})();
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}
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return response;
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}
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// Resolve the main client for the given event.
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// Client that issues a request doesn't necessarily equal the client
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// that registered the worker. It's with the latter the worker should
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// communicate with during the response resolving phase.
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async function resolveMainClient(event) {
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const client = await self.clients.get(event.clientId);
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if (client.frameType === 'top-level') {
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if (client?.frameType === 'top-level') {
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return client;
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}
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const allClients = await self.clients.matchAll();
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const allClients = await self.clients.matchAll({
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type: 'window',
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});
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return allClients
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.filter((client) => {
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@ -108,43 +171,27 @@ async function resolveMainClient(event) {
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});
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}
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async function handleRequest(event, requestId) {
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const client = await resolveMainClient(event);
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const response = await getResponse(event, client, requestId);
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// Send back the response clone for the "response:*" life-cycle events.
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// Ensure MSW is active and ready to handle the message, otherwise
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// this message will pend indefinitely.
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if (client && activeClientIds.has(client.id)) {
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(async function () {
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const clonedResponse = response.clone();
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sendToClient(client, {
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type: 'RESPONSE',
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payload: {
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requestId,
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type: clonedResponse.type,
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ok: clonedResponse.ok,
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status: clonedResponse.status,
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statusText: clonedResponse.statusText,
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body: clonedResponse.body === null ? null : await clonedResponse.text(),
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headers: serializeHeaders(clonedResponse.headers),
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redirected: clonedResponse.redirected,
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},
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});
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})();
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}
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return response;
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}
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async function getResponse(event, client, requestId) {
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const { request } = event;
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// Clone the request because it might've been already used
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// (i.e. its body has been read and sent to the client).
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const requestClone = request.clone();
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const getOriginalResponse = () => fetch(requestClone);
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// Bypass mocking when the request client is not active.
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function passthrough() {
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const headers = Object.fromEntries(requestClone.headers.entries());
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// Remove internal MSW request header so the passthrough request
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// complies with any potential CORS preflight checks on the server.
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// Some servers forbid unknown request headers.
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delete headers['x-msw-intention'];
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return fetch(requestClone, { headers });
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}
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// Bypass mocking when the client is not active.
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if (!client) {
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return getOriginalResponse();
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return passthrough();
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}
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// Bypass initial page load requests (i.e. static assets).
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@ -152,145 +199,56 @@ async function getResponse(event, client, requestId) {
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// means that MSW hasn't dispatched the "MOCK_ACTIVATE" event yet
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// and is not ready to handle requests.
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if (!activeClientIds.has(client.id)) {
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return await getOriginalResponse();
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return passthrough();
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}
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// Bypass requests with the explicit bypass header
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if (requestClone.headers.get(bypassHeaderName) === 'true') {
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const cleanRequestHeaders = serializeHeaders(requestClone.headers);
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// Remove the bypass header to comply with the CORS preflight check.
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delete cleanRequestHeaders[bypassHeaderName];
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const originalRequest = new Request(requestClone, {
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headers: new Headers(cleanRequestHeaders),
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});
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return fetch(originalRequest);
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// Bypass requests with the explicit bypass header.
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// Such requests can be issued by "ctx.fetch()".
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const mswIntention = request.headers.get('x-msw-intention');
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if (['bypass', 'passthrough'].includes(mswIntention)) {
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return passthrough();
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}
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// Send the request to the client-side MSW.
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const reqHeaders = serializeHeaders(request.headers);
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const body = await request.text();
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const clientMessage = await sendToClient(client, {
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type: 'REQUEST',
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payload: {
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id: requestId,
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url: request.url,
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method: request.method,
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headers: reqHeaders,
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cache: request.cache,
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mode: request.mode,
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credentials: request.credentials,
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destination: request.destination,
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integrity: request.integrity,
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redirect: request.redirect,
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referrer: request.referrer,
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referrerPolicy: request.referrerPolicy,
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body,
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bodyUsed: request.bodyUsed,
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keepalive: request.keepalive,
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// Notify the client that a request has been intercepted.
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const requestBuffer = await request.arrayBuffer();
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const clientMessage = await sendToClient(
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client,
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{
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type: 'REQUEST',
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payload: {
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id: requestId,
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url: request.url,
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mode: request.mode,
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method: request.method,
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headers: Object.fromEntries(request.headers.entries()),
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cache: request.cache,
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credentials: request.credentials,
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destination: request.destination,
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integrity: request.integrity,
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redirect: request.redirect,
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referrer: request.referrer,
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referrerPolicy: request.referrerPolicy,
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body: requestBuffer,
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keepalive: request.keepalive,
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},
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},
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});
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[requestBuffer]
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);
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switch (clientMessage.type) {
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case 'MOCK_SUCCESS': {
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return delayPromise(() => respondWithMock(clientMessage), clientMessage.payload.delay);
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case 'MOCK_RESPONSE': {
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return respondWithMock(clientMessage.data);
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}
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case 'MOCK_NOT_FOUND': {
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return getOriginalResponse();
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}
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case 'NETWORK_ERROR': {
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const { name, message } = clientMessage.payload;
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const networkError = new Error(message);
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networkError.name = name;
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// Rejecting a request Promise emulates a network error.
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throw networkError;
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}
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case 'INTERNAL_ERROR': {
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const parsedBody = JSON.parse(clientMessage.payload.body);
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console.error(
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`\
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[MSW] Uncaught exception in the request handler for "%s %s":
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${parsedBody.location}
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This exception has been gracefully handled as a 500 response, however, it's strongly recommended to resolve this error, as it indicates a mistake in your code. If you wish to mock an error response, please see this guide: https://mswjs.io/docs/recipes/mocking-error-responses\
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`,
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request.method,
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request.url
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);
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return respondWithMock(clientMessage);
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return passthrough();
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}
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}
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return getOriginalResponse();
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return passthrough();
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}
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self.addEventListener('fetch', function (event) {
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const { request } = event;
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const accept = request.headers.get('accept') || '';
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// Bypass server-sent events.
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if (accept.includes('text/event-stream')) {
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return;
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}
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// Bypass navigation requests.
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if (request.mode === 'navigate') {
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return;
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}
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// Opening the DevTools triggers the "only-if-cached" request
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// that cannot be handled by the worker. Bypass such requests.
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if (request.cache === 'only-if-cached' && request.mode !== 'same-origin') {
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return;
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}
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// Bypass all requests when there are no active clients.
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// Prevents the self-unregistered worked from handling requests
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// after it's been deleted (still remains active until the next reload).
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if (activeClientIds.size === 0) {
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return;
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}
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const requestId = uuidv4();
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return event.respondWith(
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handleRequest(event, requestId).catch((error) => {
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if (error.name === 'NetworkError') {
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console.warn('[MSW] Successfully emulated a network error for the "%s %s" request.', request.method, request.url);
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return;
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}
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// At this point, any exception indicates an issue with the original request/response.
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console.error(
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`\
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[MSW] Caught an exception from the "%s %s" request (%s). This is probably not a problem with Mock Service Worker. There is likely an additional logging output above.`,
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request.method,
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request.url,
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`${error.name}: ${error.message}`
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);
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})
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);
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});
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function serializeHeaders(headers) {
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const reqHeaders = {};
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headers.forEach((value, name) => {
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reqHeaders[name] = reqHeaders[name] ? [].concat(reqHeaders[name]).concat(value) : value;
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});
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return reqHeaders;
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}
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function sendToClient(client, message) {
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function sendToClient(client, message, transferrables = []) {
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return new Promise((resolve, reject) => {
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const channel = new MessageChannel();
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@ -302,27 +260,25 @@ function sendToClient(client, message) {
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resolve(event.data);
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};
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client.postMessage(JSON.stringify(message), [channel.port2]);
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client.postMessage(message, [channel.port2].concat(transferrables.filter(Boolean)));
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});
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}
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function delayPromise(cb, duration) {
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return new Promise((resolve) => {
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setTimeout(() => resolve(cb()), duration);
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});
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}
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async function respondWithMock(response) {
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// Setting response status code to 0 is a no-op.
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// However, when responding with a "Response.error()", the produced Response
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// instance will have status code set to 0. Since it's not possible to create
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// a Response instance with status code 0, handle that use-case separately.
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if (response.status === 0) {
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return Response.error();
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}
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function respondWithMock(clientMessage) {
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return new Response(clientMessage.payload.body, {
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...clientMessage.payload,
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headers: clientMessage.payload.headers,
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});
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}
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const mockedResponse = new Response(response.body, response);
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function uuidv4() {
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|
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
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|
const r = (Math.random() * 16) | 0;
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const v = c == 'x' ? r : (r & 0x3) | 0x8;
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return v.toString(16);
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Reflect.defineProperty(mockedResponse, IS_MOCKED_RESPONSE, {
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value: true,
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enumerable: true,
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});
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|
return mockedResponse;
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|
}
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Chaim Lev-Ari
10 months ago
committed by