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How to use EvaluateExpressionOnNewDocumentAsync method of PuppeteerSharp.Page class
Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.EvaluateExpressionOnNewDocumentAsync
Page.cs
Source:Page.cs 
...542 /// </remarks>543 /// <example>544 /// An example of overriding the navigator.languages property before the page loads:545 /// <code>546 /// await page.EvaluateExpressionOnNewDocumentAsync("window.__example = true;");547 /// </code>548 /// </example>549 /// <returns>Task</returns>550 public Task EvaluateExpressionOnNewDocumentAsync(string expression)551 => Client.SendAsync("Page.addScriptToEvaluateOnNewDocument", new PageAddScriptToEvaluateOnNewDocumentRequest552 {553 Source = expression554 });555 /// <summary>556 /// The method iterates JavaScript heap and finds all the objects with the given prototype.557 /// Shortcut for <c>page.MainFrame.GetExecutionContextAsync().QueryObjectsAsync(prototypeHandle)</c>.558 /// </summary>559 /// <returns>A task which resolves to a handle to an array of objects with this prototype.</returns>560 /// <param name="prototypeHandle">A handle to the object prototype.</param>561 public async Task<JSHandle> QueryObjectsAsync(JSHandle prototypeHandle)562 {563 var context = await MainFrame.GetExecutionContextAsync().ConfigureAwait(false);564 return await context.QueryObjectsAsync(prototypeHandle).ConfigureAwait(false);...
BrowserProfile.cs
Source:BrowserProfile.cs
...132 {133 if (_fingerprint == null) return;134 #region navigator.platfrom135 var navigatorplatform = _fingerprint.attr?.navigatorplatform;136 //await page.EvaluateExpressionOnNewDocumentAsync($"window.navigator.__defineGetter__('platform', () => '{navigatorplatform}');");137 await page.EvaluateFunctionOnNewDocumentAsync(138 @"(platform) => {139 Object.defineProperties(navigator, {140 platform:141 {142 get() { return platform; }143 },144 });145 }", navigatorplatform);146 #endregion147 var navigatorhardwareConcurrency = _fingerprint.attr?.navigatorhardwareConcurrency;148 //await page.EvaluateExpressionOnNewDocumentAsync($"window.navigator.__defineGetter__('hardwareConcurrency', () => '{navigatorhardwareConcurrency}');");149 var screenheight = _fingerprint.attr?.screenheight;150 if (screenheight.HasValue) await page.EvaluateExpressionOnNewDocumentAsync($"window.screen.__defineGetter__('height', () => '{screenheight}');");151 var screenwidth = _fingerprint.attr?.screenwidth;152 if (screenwidth.HasValue) await page.EvaluateExpressionOnNewDocumentAsync($"window.screen.__defineGetter__('width', () => '{screenwidth}');");153 var overrideNavigatorLanguages = @"Object.defineProperty(navigator, 'languages', {154 get: function() {155 return ['en-US', 'en', 'bn'];156 };157 });";158 await page.EvaluateExpressionOnNewDocumentAsync(overrideNavigatorLanguages);159 //navigatorhardwareConcurrency = 18;160 //await page.EvaluateFunctionOnNewDocumentAsync(@"(hardwareConcurrency) => {161 // window.navigator.__defineGetter__('hardwareConcurrency', () => hardwareConcurrency);162 // }", navigatorhardwareConcurrency);163 //await page.EvaluateExpressionAsync("window.navigator.__defineGetter__('platform', () => 'Linux armv8l');");164 //await page.EvaluateExpressionOnNewDocumentAsync("window.navigator.__defineGetter__('plugins', () => []);");165 //await page.EvaluateExpressionOnNewDocumentAsync("window.navigator.__defineGetter__('platform', () => 'Linux armv8l');");166 //await page.EvaluateExpressionOnNewDocumentAsync(File.ReadAllText(@"C:\Projects\RegBot\Fingerprint.Classes\JavaScript1.js"));167 }168 private void Page_Console(object sender, ConsoleEventArgs e)169 {170 Log.Info($"Console message - {e.Message}");171 }172 private async void Browser_TargetChanged(object sender, TargetChangedArgs e)173 {174 try175 {176 var page = await e.Target.PageAsync();177 if (page != null)178 {179 RunScriptOnPage(page);180 }...
ApiTests.cs
Source:ApiTests.cs
...31 }32 private async Task<Page> SetUpPage(string roomObjectJsFn = "roomConfiguration => roomConfiguration")33 {34 var page = await Browser.NewPageAsync();35 await page.EvaluateExpressionOnNewDocumentAsync(36$@"const getRoomResult = {roomObjectJsFn};37HBInit = roomConfiguration => {{38 const roomlink = document.querySelector('iframe').contentWindow.document.getElementById('roomlink');39 const link = document.createElement('a');40 link.href = '{RoomUrl}';41 roomlink.appendChild(link);42 return getRoomResult(roomConfiguration);43}};");44 return page;45 }46 [Test]47 public async Task CreateRoom_ReturnsLinkAfterInit()48 {49 var page = await SetUpPage();...
PageEvaluateOnNewDocumentTests.cs
Source:PageEvaluateOnNewDocumentTests.cs
...44 }45 [SkipBrowserFact(skipFirefox: true)]46 public async Task ShouldWorkWithExpressions()47 {48 await Page.EvaluateExpressionOnNewDocumentAsync("window.injected = 123;");49 await Page.GoToAsync(TestConstants.ServerUrl + "/tamperable.html");50 Assert.Equal(123, await Page.EvaluateExpressionAsync<int>("window.result"));51 }52 }53}...
StealthPlugin.cs
Source:StealthPlugin.cs
...39 public override ICollection<PuppeteerExtraPlugin> GetDependencies() => _standardEvasions;40 public override async Task OnPageCreated(Page page)41 {42 var utilsScript = Utils.GetScript("Utils.js");43 await page.EvaluateExpressionOnNewDocumentAsync(utilsScript);44 }45 private T GetOptionByType<T>() where T : IPuppeteerExtraPluginOptions46 {47 return _options.OfType<T>().FirstOrDefault();48 }49 public void RemoveEvasionByType<T>() where T : PuppeteerExtraPlugin50 {51 _standardEvasions.RemoveAll(ev => ev is T);52 }53 }54}...
EvaluateOnNewDocumentTests.cs
Source:EvaluateOnNewDocumentTests.cs
...40 }41 [Fact]42 public async Task ShouldWorkWithExpressions()43 {44 await Page.EvaluateExpressionOnNewDocumentAsync("window.injected = 123;");45 await Page.GoToAsync(TestConstants.ServerUrl + "/tamperable.html");46 Assert.Equal(123, await Page.EvaluateExpressionAsync<int>("window.result"));47 }48 }49}...
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9 var options = new LaunchOptions { Headless = false, SlowMo = 100 };10 var browser = await Puppeteer.LaunchAsync(options);11 var page = await browser.NewPageAsync();12 await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");13 await page.WaitForSelectorAsync("#detected_value");14 var element = await page.QuerySelectorAsync("#detected_value");15 var text = await page.EvaluateFunctionAsync<string>("element => element.textContent", element);16 Console.WriteLine(text);17 Console.ReadLine();18 }19 }20}21using System;22using System.Threading.Tasks;23using PuppeteerSharp;24{25 {26 static async Task Main(string[] args)27 {28 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);29 var options = new LaunchOptions { Headless = false, SlowMo = 100 };30 var browser = await Puppeteer.LaunchAsync(options);31 var page = await browser.NewPageAsync();32 var frame = await page.MainFrame;33 await frame.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");34 await page.WaitForSelectorAsync("#detected_value");35 var element = await page.QuerySelectorAsync("#detected_value");36 var text = await page.EvaluateFunctionAsync<string>("element => element.textContent", element);37 Console.WriteLine(text);38 Console.ReadLine();39 }40 }41}42using System;43using System.Threading.Tasks;44using PuppeteerSharp;45{
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1string[] files = Directory.GetFiles("path");2foreach (string file in files)3{4 string content = File.ReadAllText(file);5}6string[] files = Directory.GetFiles("path");7foreach (string file in files)8{9 string content = File.ReadAllText(file);10}
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 public static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 });11 var page = await browser.NewPageAsync();12 await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => undefined }) }");13 await browser.CloseAsync();14 }15 }16}
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1var page = await browser.NewPageAsync();2await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");3var page = await browser.NewPageAsync();4await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");5var page = await browser.NewPageAsync();6await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");7var page = await browser.NewPageAsync();8await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");9var page = await browser.NewPageAsync();10await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");11var page = await browser.NewPageAsync();12await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'webdriver', { get: () => false }); }");
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 MainAsync().Wait();9 }10 static async Task MainAsync()11 {12 var browser = await Puppeteer.LaunchAsync(new LaunchOptions13 {14 Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }15 });16 var page = await browser.NewPageAsync();17 var result = await page.EvaluateExpressionOnNewDocumentAsync("document.location.href");18 Console.WriteLine(result);19 await browser.CloseAsync();20 }21 }22}
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 MainAsync().GetAwaiter().GetResult();9 }10 static async Task MainAsync()11 {12 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });13 var page = await browser.NewPageAsync();14 await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperties(navigator, { webdriver: { get: () => false } }) }");15 await page.ReloadAsync();16 await page.EvaluateExpressionOnNewDocumentAsync("() => { window.navigator.chrome = { runtime: {}, }; }");17 await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'languages', { get: () => ['en-US', 'en'] }); }");18 await page.EvaluateExpressionOnNewDocumentAsync("() => { Object.defineProperty(navigator, 'plugins', { get: () => [1, 2, 3, 4, 5,6], }); }");19 await page.ReloadAsync();20 Console.ReadLine();21 }22 }23}
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 {9 };10 using (var browser = await Puppeteer.LaunchAsync(options))11 {12 using (var page = await browser.NewPageAsync())13 {14 var response = await page.EvaluateExpressionOnNewDocumentAsync("() => { window.__REACT_DEVTOOLS_GLOBAL_HOOK__ = { isDisabled: true }; }");15 await page.WaitForSelectorAsync("input[name='q']");16 await page.TypeAsync("input[name='q']", "puppeteer");17 await page.PressAsync("input[name='q']", "Enter");18 await page.WaitForSelectorAsync("div[id='resultStats']");19 var result = await page.EvaluateExpressionAsync<string>("document.querySelector('div[id=\"resultStats\"]').innerText");20 Console.WriteLine(result);21 }22 }23 }24 }25}263,90,00,000 results (0.53 sec
EvaluateExpressionOnNewDocumentAsync
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5{6static async Task Main(string[] args)7{8await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11}))12{13using (var page = await browser.NewPageAsync())14{15var result = await page.EvaluateExpressionOnNewDocumentAsync(@"() => {16window.foo = 'bar';17}");18Console.WriteLine(result);19}20}21}22}23}24using System;25using System.Threading.Tasks;26using PuppeteerSharp;27{28{29static async Task Main(string[] args)30{31await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);32using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions33{34}))35{36using (var page = await browser.NewPageAsync())37{38var result = await page.EvaluateExpressionOnNewDocumentAsync(@"() => {39window.foo = 'bar';40}");41Console.WriteLine(result);42}43}44}45}46}
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Most used method in Page
- FrameManagerGetFrames
- workersValuesToArray
- PopupGetInvocationList
- clientDisconnected
- SetGeolocationAsync
- SetDragInterceptionAsync
- MetricsAsync
- TapAsync
- QuerySelectorAsync
- QuerySelectorAllAsync
- QuerySelectorAllHandleAsync
- XPathAsync
- EvaluateExpressionHandleAsync
- EvaluateFunctionHandleAsync
- EvaluateOnNewDocumentAsync
- EvaluateFunctionOnNewDocumentAsync
- EvaluateExpressionOnNewDocumentAsync
- QueryObjectsAsync
- SetRequestInterceptionAsync
- SetOfflineModeAsync
- EmulateNetworkConditionsAsync
- GetCookiesAsync
- SetCookieAsync
- DeleteCookieAsync
- AddScriptTagAsync
- AddStyleTagAsync
- ExposeFunctionAsync
- TResult
- GetContentAsync
- SetContentAsync
- GoToAsync
- PdfAsync
- PdfStreamAsync
- PdfDataAsync
- SetJavaScriptEnabledAsync
- SetBypassCSPAsync
- EmulateMediaAsync
- EmulateMediaTypeAsync
- EmulateMediaFeaturesAsync
- SetViewportAsync
- EmulateAsync
- ScreenshotAsync
- ScreenshotStreamAsync
- ScreenshotBase64Async
- ScreenshotDataAsync
- GetTitleAsync
- CloseAsync
- SetCacheEnabledAsync
- ClickAsync
- HoverAsync
- FocusAsync
- TypeAsync
- EvaluateExpressionAsync
- EvaluateFunctionAsync
- SetUserAgentAsync
- SetExtraHttpHeadersAsync
- AuthenticateAsync
- ReloadAsync
- SelectAsync
- WaitForTimeoutAsync
- WaitForFunctionAsync
- WaitForExpressionAsync
- WaitForSelectorAsync
- WaitForXPathAsync
- WaitForNavigationAsync
- WaitForNetworkIdleAsync
- Evaluate
- requestEventListener
- responseEventListener
- Cleanup
- WaitForRequestAsync
- WaitForResponseAsync
- WaitForFileChooserAsync
- GoBackAsync
- GoForwardAsync
- SetBurstModeOffAsync
- BringToFrontAsync
- EmulateVisionDeficiencyAsync
- EmulateTimezoneAsync
- EmulateIdleStateAsync
- EmulateCPUThrottlingAsync
- OnPopup
- InitializeAsync
- GoAsync
- ClientMessageReceived
- OnDetachedFromTarget
- OnTargetCrashed
- EmitMetrics
- HandleException
- OnDialog
- Dispose
- DisposeAsync
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