How to use applyContextSetting method in Playwright Internal

Best JavaScript code snippet using playwright-internal

TargetRegistry.js

Source:TargetRegistry.js

...413  }414  async addBinding(name, script) {415    await this._channel.connect('').send('addBinding', { name, script }).catch(e => void e);416  }417  async applyContextSetting(name, value) {418    await this._channel.connect('').send('applyContextSetting', { name, value }).catch(e => void e);419  }420  async hasFailedToOverrideTimezone() {421    return await this._channel.connect('').send('hasFailedToOverrideTimezone').catch(e => true);422  }423  async _startVideoRecording({width, height, scale, dir}) {424    // On Mac the window may not yet be visible when TargetCreated and its425    // NSWindow.windowNumber may be -1, so we wait until the window is known426    // to be initialized and visible.427    await this.windowReady();428    const file = OS.Path.join(dir, helper.generateId() + '.webm');429    if (width < 10 || width > 10000 || height < 10 || height > 10000)430      throw new Error("Invalid size");431    if (scale && (scale <= 0 || scale > 1))432      throw new Error("Unsupported scale");433    const screencast = Cc['@mozilla.org/juggler/screencast;1'].getService(Ci.nsIScreencastService);434    const docShell = this._gBrowser.ownerGlobal.docShell;435    // Exclude address bar and navigation control from the video.436    const rect = this.linkedBrowser().getBoundingClientRect();437    const devicePixelRatio = this._window.devicePixelRatio;438    const videoSessionId = screencast.startVideoRecording(docShell, file, width, height, scale || 0, devicePixelRatio * rect.top);439    this._screencastInfo = { videoSessionId, file };440    this.emit(PageTarget.Events.ScreencastStarted);441  }442  async _stopVideoRecording() {443    if (!this._screencastInfo)444      throw new Error('No video recording in progress');445    const screencastInfo = this._screencastInfo;446    this._screencastInfo = undefined;447    const screencast = Cc['@mozilla.org/juggler/screencast;1'].getService(Ci.nsIScreencastService);448    const result = new Promise(resolve =>449      Services.obs.addObserver(function onStopped(subject, topic, data) {450        if (screencastInfo.videoSessionId != data)451          return;452        Services.obs.removeObserver(onStopped, 'juggler-screencast-stopped');453        resolve();454      }, 'juggler-screencast-stopped')455    );456    screencast.stopVideoRecording(screencastInfo.videoSessionId);457    return result;458  }459  screencastInfo() {460    return this._screencastInfo;461  }462  dispose() {463    this._disposed = true;464    if (this._screencastInfo)465      this._stopVideoRecording().catch(e => dump(`stopVideoRecording failed:\n${e}\n`));466    this._browserContext.pages.delete(this);467    this._registry._browserToTarget.delete(this._linkedBrowser);468    this._registry._browserBrowsingContextToTarget.delete(this._linkedBrowser.browsingContext);469    try {470      helper.removeListeners(this._eventListeners);471    } catch (e) {472      // In some cases, removing listeners from this._linkedBrowser fails473      // because it is already half-destroyed.474      if (e)475        dump(e.message + '\n' + e.stack + '\n');476    }477    this._registry.emit(TargetRegistry.Events.TargetDestroyed, this);478  }479}480PageTarget.Events = {481  ScreencastStarted: Symbol('PageTarget.ScreencastStarted'),482  Crashed: Symbol('PageTarget.Crashed'),483  DialogOpened: Symbol('PageTarget.DialogOpened'),484  DialogClosed: Symbol('PageTarget.DialogClosed'),485};486function fromProtocolColorScheme(colorScheme) {487  if (colorScheme === 'light' || colorScheme === 'dark')488    return colorScheme;489  if (colorScheme === null || colorScheme === 'no-preference')490    return undefined;491  throw new Error('Unknown color scheme: ' + colorScheme);492}493class BrowserContext {494  constructor(registry, browserContextId, removeOnDetach) {495    this._registry = registry;496    this.browserContextId = browserContextId;497    // Default context has userContextId === 0, but we pass undefined to many APIs just in case.498    this.userContextId = 0;499    if (browserContextId !== undefined) {500      const identity = ContextualIdentityService.create(IDENTITY_NAME + browserContextId);501      this.userContextId = identity.userContextId;502    }503    this._principals = [];504    // Maps origins to the permission lists.505    this._permissions = new Map();506    this._registry._browserContextIdToBrowserContext.set(this.browserContextId, this);507    this._registry._userContextIdToBrowserContext.set(this.userContextId, this);508    this._proxy = null;509    this.removeOnDetach = removeOnDetach;510    this.extraHTTPHeaders = undefined;511    this.httpCredentials = undefined;512    this.requestInterceptionEnabled = undefined;513    this.ignoreHTTPSErrors = undefined;514    this.downloadOptions = undefined;515    this.defaultViewportSize = undefined;516    this.deviceScaleFactor = undefined;517    this.defaultUserAgent = null;518    this.touchOverride = false;519    this.colorScheme = 'none';520    this.screencastOptions = undefined;521    this.scriptsToEvaluateOnNewDocument = [];522    this.bindings = [];523    this.settings = {};524    this.pages = new Set();525  }526  setColorScheme(colorScheme) {527    this.colorScheme = fromProtocolColorScheme(colorScheme);528    for (const page of this.pages)529      page.updateColorSchemeOverride();530  }531  async destroy() {532    if (this.userContextId !== 0) {533      ContextualIdentityService.remove(this.userContextId);534      for (const page of this.pages)535        page.close();536      if (this.pages.size) {537        await new Promise(f => {538          const listener = helper.on(this._registry, TargetRegistry.Events.TargetDestroyed, () => {539            if (!this.pages.size) {540              helper.removeListeners([listener]);541              f();542            }543          });544        });545      }546    }547    this._registry._browserContextIdToBrowserContext.delete(this.browserContextId);548    this._registry._userContextIdToBrowserContext.delete(this.userContextId);549  }550  setProxy(proxy) {551    // Clear AuthCache.552    Services.obs.notifyObservers(null, "net:clear-active-logins");553    this._proxy = proxy;554  }555  setIgnoreHTTPSErrors(ignoreHTTPSErrors) {556    if (this.ignoreHTTPSErrors === ignoreHTTPSErrors)557      return;558    this.ignoreHTTPSErrors = ignoreHTTPSErrors;559    const certOverrideService = Cc[560      "@mozilla.org/security/certoverride;1"561    ].getService(Ci.nsICertOverrideService);562    if (ignoreHTTPSErrors) {563      Preferences.set("network.stricttransportsecurity.preloadlist", false);564      Preferences.set("security.cert_pinning.enforcement_level", 0);565      certOverrideService.setDisableAllSecurityChecksAndLetAttackersInterceptMyData(true, this.userContextId);566    } else {567      certOverrideService.setDisableAllSecurityChecksAndLetAttackersInterceptMyData(false, this.userContextId);568    }569  }570  async setDefaultUserAgent(userAgent) {571    this.defaultUserAgent = userAgent;572    for (const page of this.pages)573      page.updateUserAgent();574  }575  setTouchOverride(touchOverride) {576    this.touchOverride = touchOverride;577    for (const page of this.pages)578      page.updateTouchOverride();579  }580  async setDefaultViewport(viewport) {581    this.defaultViewportSize = viewport ? viewport.viewportSize : undefined;582    this.deviceScaleFactor = viewport ? viewport.deviceScaleFactor : undefined;583    await Promise.all(Array.from(this.pages).map(page => page.updateViewportSize()));584  }585  async addScriptToEvaluateOnNewDocument(script) {586    this.scriptsToEvaluateOnNewDocument.push(script);587    await Promise.all(Array.from(this.pages).map(page => page.addScriptToEvaluateOnNewDocument(script)));588  }589  async addBinding(name, script) {590    this.bindings.push({ name, script });591    await Promise.all(Array.from(this.pages).map(page => page.addBinding(name, script)));592  }593  async applySetting(name, value) {594    this.settings[name] = value;595    await Promise.all(Array.from(this.pages).map(page => page.applyContextSetting(name, value)));596  }597  async grantPermissions(origin, permissions) {598    this._permissions.set(origin, permissions);599    const promises = [];600    for (const page of this.pages) {601      if (origin === '*' || page._url.startsWith(origin)) {602        this.grantPermissionsToOrigin(page._url);603        promises.push(page.ensurePermissions());604      }605    }606    await Promise.all(promises);607  }608  resetPermissions() {609    for (const principal of this._principals) {...

main.js

Source:main.js

...86    },87    addBinding({name, script}) {88      frameTree.addBinding(name, script);89    },90    applyContextSetting({name, value}) {91      applySetting[name](value);92    },93    ensurePermissions() {94      // noop, just a rountrip.95    },96    hasFailedToOverrideTimezone() {97      return failedToOverrideTimezone;98    },99    async awaitViewportDimensions({width, height, deviceSizeIsPageSize}) {100      docShell.deviceSizeIsPageSize = deviceSizeIsPageSize;101      const win = docShell.domWindow;102      if (win.innerWidth === width && win.innerHeight === height)103        return;104      await new Promise(resolve => {...

Using AI Code Generation

1const { applyContextSettings } = require('playwright/lib/server/browserContext');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  applyContextSettings(context, {7    extraHTTPHeaders: {8    }9  });10})();11const { applyContextSettings } = require('playwright/lib/server/browserContext');12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const context = await browser.newContext();16  applyContextSettings(context, {17    extraHTTPHeaders: {18    }19  });20})();21const { applyContextSettings } = require('playwright/lib/server/browserContext');22const { chromium } = require('playwright');23(async () => {24  const browser = await chromium.launch();25  const context = await browser.newContext();26  applyContextSettings(context, {27    extraHTTPHeaders: {28    }29  });30})();31const { applyContextSettings } = require('playwright/lib/server/browserContext');32const { chromium } = require('playwright');33(async () => {34  const browser = await chromium.launch();35  const context = await browser.newContext();36  applyContextSettings(context, {37    extraHTTPHeaders: {38    }39  });40})();41const { applyContextSettings } = require('playwright/lib/server/browserContext');42const { chromium } = require('playwright');43(async () => {44  const browser = await chromium.launch();45  const context = await browser.newContext();46  applyContextSettings(context, {47    extraHTTPHeaders: {48    }49  });50})();

Using AI Code Generation

1const { applyContextSettings } = require('playwright/lib/server/chromium/crBrowser');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext({ ignoreHTTPSErrors: true });6  const page = await context.newPage();7  await applyContextSettings(context, { ignoreHTTPSErrors: false });8  await page.screenshot({ path: 'example.png' });9  await browser.close();10})();

Using AI Code Generation

1const { Playwright } = require('playwright');2const { chromium } = require('playwright-chromium');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  await Playwright.applyContextSetting(page.context(), 'ignoreHTTPSErrors', true);7  await browser.close();8})();

Using AI Code Generation

1const { applyContextSetting } = require('playwright-core/lib/server/browserContext');2const { chromium } = require('playwright-core');3const fs = require('fs');4(async () => {5  const browser = await chromium.launch();6  const context = await browser.newContext();7  const page = await context.newPage();8  await context.close();9  await browser.close();10})();11applyContextSetting(context, 'storageState', {12    {13    }14    {15        {16        }17    }18});19fs.writeFileSync('storage.json', JSON.stringify(context._options.storageState, null, 2));20const { chromium } = require('playwright-core');21const fs = require('fs');22(async () => {23  const browser = await chromium.launch();24  const context = await browser.newContext();25  const storage = fs.readFileSync('storage.json');26  await context.addCookies(JSON.parse(storage).cookies);27  const page = await context.newPage();28  await page.evaluate((storage) => {29    storage.origins.forEach((origin) => {30      localStorage.clear();31      origin.localStorage.forEach((item) => {32        localStorage.setItem(item.name, item.value);33      });34    });35  }, JSON.parse(storage));36  await context.close();37  await browser.close();38})();

Using AI Code Generation

1const { applyContextSettings } = require('playwright/lib/server/browserContext');2const { chromium } = require('playwright');3const fs = require('fs');4const path = require('path');5const { promisify } = require('util');6const readFileAsync = promisify(fs.readFile);7const writeFileAsync = promisify(fs.writeFile);8(async () => {9  const browser = await chromium.launch();10  const context = await browser.newContext();11  const page = await context.newPage();12  const settings = await readFileAsync(path.join(__dirname, 'settings.json'), 'utf-8');13  await applyContextSettings(context, JSON.parse(settings));14  await page.screenshot({ path: 'example.png' });15  await browser.close();16})();17{18  "recordVideo": {19    "size": {20    }21  }22}

Using AI Code Generation

1const { applyContextSettings } = require('playwright-core/lib/server/browserContext');2applyContextSettings(context, { ignoreHTTPSErrors: true });3const { applyBrowserContextOptions } = require('playwright-core/lib/server/browserContext');4applyBrowserContextOptions(context, { ignoreHTTPSErrors: true });5const { applyPageOptions } = require('playwright-core/lib/server/page');6applyPageOptions(page, { ignoreHTTPSErrors: true });7const { applyBrowserOptions } = require('playwright-core/lib/server/browser');8applyBrowserOptions(browser, { ignoreHTTPSErrors: true });9const { applyBrowserAppOptions } = require('playwright-core/lib/server/browserType');10applyBrowserAppOptions(browser, { ignoreHTTPSErrors: true });11const { applyDeviceDescriptor } = require('playwright-core/lib/server/deviceDescriptors');12applyDeviceDescriptor(context, { viewport: { width: 1280, height: 720 } });

Using AI Code Generation

1const context = await browser.newContext();2await context._options._browserContext._applyContextSetting('download', {3});4const page = await context.newPage();5await page.click('a.download');6await page.waitForTimeout(5000);7await page.close();8await context.close();9const context = await browser.newContext();10await context._options._browserContext._applyContextSetting('download', {11});12const page = await context.newPage();13await page.click('a.download');14await page.waitForTimeout(5000);15await page.close();16await context.close();17const context = await browser.newContext();18await context._options._browserContext._applyContextSetting('download', {19});20const page = await context.newPage();21await page.click('a.download');22await page.waitForTimeout(5000);23await page.close();24await context.close();25const context = await browser.newContext();26await context._options._browserContext._applyContextSetting('download', {27});28const page = await context.newPage();29await page.click('a.download');30await page.waitForTimeout(5000);31await page.close();32await context.close();33const context = await browser.newContext();34await context._options._browserContext._applyContextSetting('download', {35});36const page = await context.newPage();37await page.click('a.download');38await page.waitForTimeout(5000);39await page.close();40await context.close();41const context = await browser.newContext();42await context._options._browserContext._applyContextSetting('download', {43});44const page = await context.newPage();45await page.click('a.download

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.