Adds Redux and React-Intl to storybook (#35094)
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Echo
GitHub
344
.storybook/static/mockServiceWorker.js
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344
.storybook/static/mockServiceWorker.js
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/* eslint-disable */
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/* tslint:disable */
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/**
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* Mock Service Worker.
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* @see https://github.com/mswjs/msw
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* - Please do NOT modify this file.
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*/
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const PACKAGE_VERSION = '2.10.2'
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const INTEGRITY_CHECKSUM = 'f5825c521429caf22a4dd13b66e243af'
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const IS_MOCKED_RESPONSE = Symbol('isMockedResponse')
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const activeClientIds = new Set()
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addEventListener('install', function () {
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self.skipWaiting()
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})
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addEventListener('activate', function (event) {
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event.waitUntil(self.clients.claim())
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})
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addEventListener('message', async function (event) {
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const clientId = Reflect.get(event.source || {}, 'id')
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if (!clientId || !self.clients) {
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return
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}
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const client = await self.clients.get(clientId)
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if (!client) {
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return
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}
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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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sendToClient(client, {
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type: 'KEEPALIVE_RESPONSE',
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})
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break
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}
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case 'INTEGRITY_CHECK_REQUEST': {
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sendToClient(client, {
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type: 'INTEGRITY_CHECK_RESPONSE',
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payload: {
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packageVersion: PACKAGE_VERSION,
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checksum: INTEGRITY_CHECKSUM,
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},
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})
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break
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}
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case 'MOCK_ACTIVATE': {
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activeClientIds.add(clientId)
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sendToClient(client, {
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type: 'MOCKING_ENABLED',
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payload: {
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client: {
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id: client.id,
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frameType: client.frameType,
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},
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},
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})
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break
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}
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case 'MOCK_DEACTIVATE': {
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activeClientIds.delete(clientId)
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break
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}
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case 'CLIENT_CLOSED': {
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activeClientIds.delete(clientId)
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const remainingClients = allClients.filter((client) => {
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return client.id !== clientId
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})
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// Unregister itself when there are no more clients
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if (remainingClients.length === 0) {
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self.registration.unregister()
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}
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break
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}
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}
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})
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addEventListener('fetch', function (event) {
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// Bypass navigation requests.
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if (event.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 (
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event.request.cache === 'only-if-cached' &&
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event.request.mode !== 'same-origin'
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) {
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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 = crypto.randomUUID()
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event.respondWith(handleRequest(event, requestId))
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})
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/**
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* @param {FetchEvent} event
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* @param {string} 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 requestCloneForEvents = event.request.clone()
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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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const serializedRequest = await serializeRequest(requestCloneForEvents)
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// Clone the response so both the client and the library could consume it.
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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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isMockedResponse: IS_MOCKED_RESPONSE in response,
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request: {
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id: requestId,
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...serializedRequest,
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},
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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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headers: Object.fromEntries(responseClone.headers.entries()),
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body: responseClone.body,
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},
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},
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},
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responseClone.body ? [serializedRequest.body, responseClone.body] : [],
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)
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}
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return response
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}
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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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* @param {FetchEvent} event
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* @returns {Promise<Client | undefined>}
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*/
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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 (activeClientIds.has(event.clientId)) {
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return client
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}
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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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type: 'window',
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})
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return allClients
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.filter((client) => {
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// Get only those clients that are currently visible.
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return client.visibilityState === 'visible'
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})
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.find((client) => {
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// Find the client ID that's recorded in the
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// set of clients that have registered the worker.
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return activeClientIds.has(client.id)
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})
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}
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/**
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* @param {FetchEvent} event
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* @param {Client | undefined} client
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* @param {string} requestId
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* @returns {Promise<Response>}
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*/
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async function getResponse(event, client, requestId) {
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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 = event.request.clone()
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function passthrough() {
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// Cast the request headers to a new Headers instance
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// so the headers can be manipulated with.
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const headers = new Headers(requestClone.headers)
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// Remove the "accept" header value that marked this request as passthrough.
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// This prevents request alteration and also keeps it compliant with the
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// user-defined CORS policies.
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const acceptHeader = headers.get('accept')
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if (acceptHeader) {
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const values = acceptHeader.split(',').map((value) => value.trim())
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const filteredValues = values.filter(
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(value) => value !== 'msw/passthrough',
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)
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if (filteredValues.length > 0) {
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headers.set('accept', filteredValues.join(', '))
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} else {
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headers.delete('accept')
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}
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}
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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 passthrough()
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}
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// Bypass initial page load requests (i.e. static assets).
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// The absence of the immediate/parent client in the map of the active clients
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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 passthrough()
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}
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// Notify the client that a request has been intercepted.
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const serializedRequest = await serializeRequest(event.request)
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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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...serializedRequest,
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},
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},
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[serializedRequest.body],
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)
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switch (clientMessage.type) {
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case 'MOCK_RESPONSE': {
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return respondWithMock(clientMessage.data)
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}
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case 'PASSTHROUGH': {
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return passthrough()
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}
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}
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return passthrough()
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}
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/**
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* @param {Client} client
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* @param {any} message
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* @param {Array<Transferable>} transferrables
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* @returns {Promise<any>}
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*/
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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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channel.port1.onmessage = (event) => {
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if (event.data && event.data.error) {
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return reject(event.data.error)
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}
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resolve(event.data)
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}
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client.postMessage(message, [
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channel.port2,
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...transferrables.filter(Boolean),
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])
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})
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}
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/**
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* @param {Response} response
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* @returns {Response}
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*/
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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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const mockedResponse = new Response(response.body, response)
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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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/**
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* @param {Request} request
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*/
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async function serializeRequest(request) {
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return {
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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: await request.arrayBuffer(),
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keepalive: request.keepalive,
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}
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}
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