Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use _clientRootSession method in Playwright Internal

Best JavaScript code snippet using playwright-internal

crBrowser.js

Source:crBrowser.js

...247  }248  isConnected() {249    return !this._connection._closed;250  }251  async _clientRootSession() {252    if (!this._clientRootSessionPromise) this._clientRootSessionPromise = this._connection.createBrowserSession();253    return this._clientRootSessionPromise;254  }255}256exports.CRBrowser = CRBrowser;257class CRServiceWorker extends _page.Worker {258  constructor(browserContext, session, url) {259    super(browserContext, url);260    this._browserContext = void 0;261    this._browserContext = browserContext;262    session.once('Runtime.executionContextCreated', event => {263      this._createExecutionContext(new _crExecutionContext.CRExecutionContext(session, event.context));264    }); // This might fail if the target is closed before we receive all execution contexts.265    session.send('Runtime.enable', {}).catch(e => {});266    session.send('Runtime.runIfWaitingForDebugger').catch(e => {});267  }268}269class CRBrowserContext extends _browserContext.BrowserContext {270  constructor(browser, browserContextId, options) {271    super(browser, options, browserContextId);272    this._evaluateOnNewDocumentSources = void 0;273    this._evaluateOnNewDocumentSources = [];274    this._authenticateProxyViaCredentials();275  }276  async _initialize() {277    (0, _utils.assert)(!Array.from(this._browser._crPages.values()).some(page => page._browserContext === this));278    const promises = [super._initialize()];279    if (this._browser.options.name !== 'electron' && this._browser.options.name !== 'clank') {280      promises.push(this._browser._session.send('Browser.setDownloadBehavior', {281        behavior: this._options.acceptDownloads ? 'allowAndName' : 'deny',282        browserContextId: this._browserContextId,283        downloadPath: this._browser.options.downloadsPath,284        eventsEnabled: true285      }));286    }287    if (this._options.permissions) promises.push(this.grantPermissions(this._options.permissions));288    await Promise.all(promises);289  }290  pages() {291    const result = [];292    for (const crPage of this._browser._crPages.values()) {293      if (crPage._browserContext === this && crPage._initializedPage) result.push(crPage._initializedPage);294    }295    return result;296  }297  async newPageDelegate() {298    (0, _browserContext.assertBrowserContextIsNotOwned)(this);299    const oldKeys = this._browser.isClank() ? new Set(this._browser._crPages.keys()) : undefined;300    let {301      targetId302    } = await this._browser._session.send('Target.createTarget', {303      url: 'about:blank',304      browserContextId: this._browserContextId305    });306    if (oldKeys) {307      // Chrome for Android returns tab ids (1, 2, 3, 4, 5) instead of content target ids here, work around it via the308      // heuristic assuming that there is only one page created at a time.309      const newKeys = new Set(this._browser._crPages.keys()); // Remove old keys.310      for (const key of oldKeys) newKeys.delete(key); // Remove potential concurrent popups.311      for (const key of newKeys) {312        const page = this._browser._crPages.get(key);313        if (page._opener) newKeys.delete(key);314      }315      (0, _utils.assert)(newKeys.size === 1);316      [targetId] = [...newKeys];317    }318    return this._browser._crPages.get(targetId);319  }320  async _doCookies(urls) {321    const {322      cookies323    } = await this._browser._session.send('Storage.getCookies', {324      browserContextId: this._browserContextId325    });326    return network.filterCookies(cookies.map(c => {327      const copy = {328        sameSite: 'Lax',329        ...c330      };331      delete copy.size;332      delete copy.priority;333      delete copy.session;334      delete copy.sameParty;335      delete copy.sourceScheme;336      delete copy.sourcePort;337      return copy;338    }), urls);339  }340  async addCookies(cookies) {341    await this._browser._session.send('Storage.setCookies', {342      cookies: network.rewriteCookies(cookies),343      browserContextId: this._browserContextId344    });345  }346  async clearCookies() {347    await this._browser._session.send('Storage.clearCookies', {348      browserContextId: this._browserContextId349    });350  }351  async _doGrantPermissions(origin, permissions) {352    const webPermissionToProtocol = new Map([['geolocation', 'geolocation'], ['midi', 'midi'], ['notifications', 'notifications'], ['camera', 'videoCapture'], ['microphone', 'audioCapture'], ['background-sync', 'backgroundSync'], ['ambient-light-sensor', 'sensors'], ['accelerometer', 'sensors'], ['gyroscope', 'sensors'], ['magnetometer', 'sensors'], ['accessibility-events', 'accessibilityEvents'], ['clipboard-read', 'clipboardReadWrite'], ['clipboard-write', 'clipboardSanitizedWrite'], ['payment-handler', 'paymentHandler'], // chrome-specific permissions we have.353    ['midi-sysex', 'midiSysex']]);354    const filtered = permissions.map(permission => {355      const protocolPermission = webPermissionToProtocol.get(permission);356      if (!protocolPermission) throw new Error('Unknown permission: ' + permission);357      return protocolPermission;358    });359    await this._browser._session.send('Browser.grantPermissions', {360      origin: origin === '*' ? undefined : origin,361      browserContextId: this._browserContextId,362      permissions: filtered363    });364  }365  async _doClearPermissions() {366    await this._browser._session.send('Browser.resetPermissions', {367      browserContextId: this._browserContextId368    });369  }370  async setGeolocation(geolocation) {371    (0, _browserContext.verifyGeolocation)(geolocation);372    this._options.geolocation = geolocation;373    for (const page of this.pages()) await page._delegate.updateGeolocation();374  }375  async setExtraHTTPHeaders(headers) {376    this._options.extraHTTPHeaders = headers;377    for (const page of this.pages()) await page._delegate.updateExtraHTTPHeaders();378  }379  async setOffline(offline) {380    this._options.offline = offline;381    for (const page of this.pages()) await page._delegate.updateOffline();382  }383  async _doSetHTTPCredentials(httpCredentials) {384    this._options.httpCredentials = httpCredentials;385    for (const page of this.pages()) await page._delegate.updateHttpCredentials();386  }387  async _doAddInitScript(source) {388    this._evaluateOnNewDocumentSources.push(source);389    for (const page of this.pages()) await page._delegate.evaluateOnNewDocument(source);390  }391  async _doExposeBinding(binding) {392    for (const page of this.pages()) await page._delegate.exposeBinding(binding);393  }394  async _doUpdateRequestInterception() {395    for (const page of this.pages()) await page._delegate.updateRequestInterception();396  }397  async _doClose() {398    (0, _utils.assert)(this._browserContextId);399    await this._browser._session.send('Target.disposeBrowserContext', {400      browserContextId: this._browserContextId401    });402    this._browser._contexts.delete(this._browserContextId);403    for (const [targetId, serviceWorker] of this._browser._serviceWorkers) {404      if (serviceWorker._browserContext !== this) continue; // When closing a browser context, service workers are shutdown405      // asynchronously and we get detached from them later.406      // To avoid the wrong order of notifications, we manually fire407      // "close" event here and forget about the serivce worker.408      serviceWorker.didClose();409      this._browser._serviceWorkers.delete(targetId);410    }411  }412  _onClosePersistent() {413    // When persistent context is closed, we do not necessary get Target.detachedFromTarget414    // for all the background pages.415    for (const [targetId, backgroundPage] of this._browser._backgroundPages.entries()) {416      if (backgroundPage._browserContext === this && backgroundPage._initializedPage) {417        backgroundPage.didClose();418        this._browser._backgroundPages.delete(targetId);419      }420    }421  }422  async _doCancelDownload(guid) {423    // The upstream CDP method is implemented in a way that no explicit error would be given424    // regarding the requested `guid`, even if the download is in a state not suitable for425    // cancellation (finished, cancelled, etc.) or the guid is invalid at all.426    await this._browser._session.send('Browser.cancelDownload', {427      guid: guid,428      browserContextId: this._browserContextId429    });430  }431  backgroundPages() {432    const result = [];433    for (const backgroundPage of this._browser._backgroundPages.values()) {434      if (backgroundPage._browserContext === this && backgroundPage._initializedPage) result.push(backgroundPage._initializedPage);435    }436    return result;437  }438  serviceWorkers() {439    return Array.from(this._browser._serviceWorkers.values()).filter(serviceWorker => serviceWorker._browserContext === this);440  }441  async newCDPSession(page) {442    let targetId = null;443    if (page instanceof _page.Page) {444      targetId = page._delegate._targetId;445    } else if (page instanceof _frames.Frame) {446      const session = page._page._delegate._sessions.get(page._id);447      if (!session) throw new Error(`This frame does not have a separate CDP session, it is a part of the parent frame's session`);448      targetId = session._targetId;449    } else {450      throw new Error('page: expected Page or Frame');451    }452    const rootSession = await this._browser._clientRootSession();453    const {454      sessionId455    } = await rootSession.send('Target.attachToTarget', {456      targetId,457      flatten: true458    });459    return this._browser._connection.session(sessionId);460  }461}462exports.CRBrowserContext = CRBrowserContext;463CRBrowserContext.CREvents = {464  BackgroundPage: 'backgroundpage',465  ServiceWorker: 'serviceworker'466};

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3    const browser = await chromium.launch({4    });5    const context = await browser.newContext();6    const page = await context.newPage();7    const client = await page.context()._clientRootSession();8    await client.send('Page.setDownloadBehavior', {9    });10    await page.click('text=Images');11    await page.click('img[al

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const client = await page.context()._clientRootSession();6  await page.waitForNavigation();7  console.log(page.url());8  await browser.close();9})();10const {chromium} = require('playwright');11(async () => {12  const browser = await chromium.launch();13  const page = await browser.newPage();14  const client = await page.context()._clientRootSession();15  const {userAgent} = await client.send('Browser.getVersion');16  console.log(userAgent);17  await browser.close();18})();19const {chromium} = require('playwright');20(async () => {21  const browser = await chromium.launch();22  const page = await browser.newPage();23  const client = await page.context()._clientRootSession();24  await client.send('Browser.setUserAgentOverride', {userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36'});25  await browser.close();26})();

Using AI Code Generation

1const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');2const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');3const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');4const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');5const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');6const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');7const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');8const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');9const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');10const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');11const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');12const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');13const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');14const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');15const { _clientRootSession }

Using AI Code Generation

1const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');2const { _clientRootSession } = require('playwright/lib/server/firefox/fxBrowser');3const { _clientRootSession } = require('playwright/lib/server/webkit/wkBrowser');4const { _clientRootSession } = require('playwright/lib/server/chromium/crBrowser');5const { _clientRootSession } = require('playwright/lib/server/firefox/fxBrowser');6const { _clientRootSession } = require('playwright/lib/server/webkit/wkBrowser');

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const page = await browser.newPage();5  const session = await page._clientRootSession();6  const { result } = await session.send('Runtime.evaluate', { expression: 'navigator.userAgent' });7  console.log(result.value);8  await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12  const browser = await chromium.launch({ headless: false });13  const page = await browser.newPage();14  const session = await page._clientRootSession();15  const { result } = await session.send('Runtime.evaluate', { expression: 'navigator.userAgent' });16  console.log(result.value);17  await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21  const browser = await chromium.launch({ headless: false });22  const page = await browser.newPage();23  const session = await page._clientRootSession();24  const { result } = await session.send('Runtime.evaluate', { expression: 'navigator.userAgent' });25  console.log(result.value);26  await browser.close();27})();28const { chromium } = require('playwright');29(async () => {30  const browser = await chromium.launch({ headless: false });31  const page = await browser.newPage();32  const session = await page._clientRootSession();33  const { result } = await session.send('Runtime.evaluate', { expression: 'navigator.userAgent' });34  console.log(result.value);35  await browser.close();36})();37const { chromium } = require('playwright

Using AI Code Generation

1const { chromium } = require('playwright');2const { _clientRootSession } = require('playwright/lib/client/client.js');3const browser = await chromium.launch({ headless: false });4const page = await browser.newPage();5const client = await _clientRootSession(page);6await client.send('Page.enable');7await client.send('Page.setDownloadBehavior', {8});9await page.click('#L2AGLb > .jyfHyd');10await page.click('text="Save"');11await page.click('text="Save"');12await page.click('text="Download"');13await page.close();14await browser.close();15You can get the file name from the network request. You can use the page.on('requestfinished') event to get the file name from the request.url16const { chromium } = require('playwright');17const { _clientRootSession } = require('playwright/lib/client/client.js');18const browser = await chromium.launch({ headless: false });19const page = await browser.newPage();20const client = await _clientRootSession(page);21await client.send('Page.enable');22await client.send('Page.setDownloadBehavior', {23});24await page.click('#L2AGLb > .jyfHyd');25await page.click('text="Save"');26await page.click('text="Save"');

Using AI Code Generation

1const { _clientRootSession } = require('playwright/lib/client/clientHelper');2const { Page } = require('playwright/lib/client/page');3const { BrowserContext } = require('playwright/lib/client/browserContext');4(async () => {5    const page = await context.newPage();6    const session = await _clientRootSession(page);7    const { pageId } = Page.from(page);8    const { browserContextId } = BrowserContext.from(context);9    const frameId = page.mainFrame()._id;10    const frameTree = await session.send('Page.getFrameTree');11    const frameId = frameTree.frameTree.frame.id;12    const targetId = await session.send('Page.getFrameTree', { frameId });13    const targetId = frameTree.frameTree.frame.id;14})()15const { _clientRootSession } = require('playwright/lib/client/clientHelper');16const { Page } = require('playwright/lib/client/page');17const { BrowserContext } = require('playwright/lib/client/browserContext');18(async () => {19    const page = await context.newPage();20    const session = await _clientRootSession(page);21    const { pageId } = Page.from(page);22    const { browserContextId } = BrowserContext.from(context);23    const frameId = page.mainFrame()._id;24    const frameTree = await session.send('Page.getFrameTree');25    const frameId = frameTree.frameTree.frame.id;26    const targetId = await session.send('Page.getFrameTree', { frameId });27    const targetId = frameTree.frameTree.frame.id;28})()29const { _clientRoot

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch();4  const page = await browser.newPage();5  const clientRootSession = await page._clientRootSession();6  await clientRootSession.send('Page.setDownloadBehavior', {7  });8  await page.click('a[href="/chrome/browser/desktop/"]');9  await browser.close();10})();11const playwright = require('playwright');12(async () => {13  const browser = await playwright.chromium.launch();14  const page = await browser.newPage();15  await page._client.send('Page.setDownloadBehavior', {16  });17  await page.click('a[href="/chrome/browser/desktop/"]');18  await browser.close();19})();20const playwright = require('playwright');21(async () => {22  const browser = await playwright.chromium.launch();23  const page = await browser.newPage();24  await page._client.send('Page.setDownloadBehavior', {25  });26  await page.click('a[href="/chrome/browser/desktop/"]');27  await browser.close();28})();29const playwright = require('playwright');30(async () => {31  const browser = await playwright.chromium.launch();32  const page = await browser.newPage();33  await page._client.send('Page.setDownloadBehavior', {34  });35  await page.click('a[href="/chrome/browser/desktop

Using AI Code Generation

1const { _clientRootSession } = require("playwright");2(async () => {3    const browser = await chromium.launch();4    const context = await browser.newContext();5    const page = await context.newPage();6    const cookies = await _clientRootSession(page).send("Network.getAllCookies");7    console.log(cookies.cookies);8})();9import { _clientRootSession } from "playwright";10(async () => {11    const browser = await chromium.launch();12    const context = await browser.newContext();13    const page = await context.newPage();14    const cookies = await _clientRootSession(page).send("Network.getAllCookies");15    console.log(cookies.cookies);16})();17from playwright.sync_api import sync_playwright18with sync_playwright() as p:19    browser = p.chromium.launch()20    context = browser.new_context()21    page = context.new_page()22    cookies = page._client_root_session.send("Network.getAllCookies")23    print(cookies.cookies)24#   {

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.