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How to use EvaluateOnNewDocumentAsync method of PuppeteerSharp.Page class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.EvaluateOnNewDocumentAsync

Page.cs

Source:Page.cs

...324        ///   get: function() {325        ///     return ['en-US', 'en', 'bn'];326        ///   };327        /// });";328        /// await page.EvaluateOnNewDocumentAsync(overrideNavigatorLanguages);329        /// </code>330        /// </example>331        /// <returns>Task</returns>332        public Task EvaluateOnNewDocumentAsync(string pageFunction, params object[] args)333        {334            var source = EvaluationString(pageFunction, args);335            return Client.SendAsync("Page.addScriptToEvaluateOnNewDocument", new { source });336        }337        /// <summary>338        /// The method iterates JavaScript heap and finds all the objects with the given prototype.339        /// Shortcut for <c>page.MainFrame.GetExecutionContextAsync().QueryObjectsAsync(prototypeHandle)</c>.340        /// </summary>341        /// <returns>A task which resolves to a handle to an array of objects with this prototype.</returns>342        /// <param name="prototypeHandle">A handle to the object prototype.</param>343        public async Task<JSHandle> QueryObjectsAsync(JSHandle prototypeHandle)344        {345            var context = await MainFrame.GetExecutionContextAsync();346            return await context.QueryObjectsAsync(prototypeHandle);...

KrogerClient.cs

Source:KrogerClient.cs

...159        {160            var browser = await _lazyBrowser.Value;161            var page = await browser.NewPageAsync();162            await page.SetUserAgentAsync(ConnectionString);163            await page.EvaluateOnNewDocumentAsync(@"164function () {165    Object.defineProperty(navigator, 'webdriver', {166        get: () => false,167    });168}");169            await page.SetViewportAsync(new ViewPortOptions170            {171                Width = 1024,172                Height = 768,173            });174            await page.SetRequestInterceptionAsync(true);175            page.Request += async (sender, requestEventArgs) =>176            {177                if (!_settings.Debug)...

WaitForSelectorTests.cs

Source:WaitForSelectorTests.cs

...81        }82        [Fact]83        public async Task ShouldThrowIfEvaluationFailed()84        {85            await Page.EvaluateOnNewDocumentAsync(@"function() {86                document.querySelector = null;87            }");88            await Page.GoToAsync(TestConstants.EmptyPage);89            var exception = await Assert.ThrowsAnyAsync<PuppeteerException>(() => Page.WaitForSelectorAsync("*"));90            Assert.Contains("document.querySelector is not a function", exception.Message);91        }92        [Fact]93        public async Task ShouldThrowWhenFrameIsDetached()94        {95            await FrameUtils.AttachFrameAsync(Page, "frame1", TestConstants.EmptyPage);96            var frame = Page.Frames.ElementAt(1);97            var waitTask = frame.WaitForSelectorAsync(".box").ContinueWith(task => task?.Exception?.InnerException);98            await FrameUtils.DetachFrameAsync(Page, "frame1");99            var waitException = await waitTask;...

RenderPage.cs

Source:RenderPage.cs

...128                        }129                    });130                }131            ";132            await p.EvaluateOnNewDocumentAsync(setIsServer);133            await p.SetRequestInterceptionAsync(true);134            p.Request += (sender, e) =>135            {136                string resType = e.Request.ResourceType.ToString();137                if (resType == "Image" || resType == "Font")138                {139                    e.Request.AbortAsync();140                }141                else142                {143                    e.Request.ContinueAsync();144                }145            };146            pageTab = p;...

EvaluateOnNewDocumentTests.cs

Source:EvaluateOnNewDocumentTests.cs

...15        }16        [Fact]17        public async Task ShouldEvaluateBeforeAnythingElseOnThePage()18        {19            await Page.EvaluateOnNewDocumentAsync(@"function(){20                window.injected = 123;21            }");22            await Page.GoToAsync(TestConstants.ServerUrl + "/tamperable.html");23            Assert.Equal(123, await Page.EvaluateExpressionAsync<int>("window.result"));24        }25    }26}...

EvaluateOnNewDocumentAsync

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 options = new LaunchOptions { Headless = false };13            using (var browser = await Puppeteer.LaunchAsync(options))14            using (var page = await browser.NewPageAsync())15            {16                await page.EvaluateOnNewDocumentAsync(@"() => {17                    Object.defineProperty(navigator, 'webdriver', {18                        get: () => undefined19                    })20                }");21                await page.WaitForSelectorAsync("div#botdetect-captcha-1");22            }23        }24    }25}26using System;27using System.Threading.Tasks;28using PuppeteerSharp;29{30    {31        static void Main(string[] args)32        {33            MainAsync().GetAwaiter().GetResult();34        }35        static async Task MainAsync()36        {37            var options = new LaunchOptions { Headless = false };38            using (var browser = await Puppeteer.LaunchAsync(options))39            using (var page = await browser.NewPageAsync())40            {41                await page.EvaluateFunctionOnNewDocumentAsync(@"() => {42                    Object.defineProperty(navigator, 'webdriver', {43                        get: () => undefined44                    })45                }");46                await page.WaitForSelectorAsync("div#botdetect-captcha-1");47            }48        }49    }50}51Your name to display (optional):

EvaluateOnNewDocumentAsync

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                    await page.SetRequestInterceptionAsync(true);15                    page.Request += async (sender, e) =>16                    {17                        var request = e.Request;18                        if (request.ResourceType == ResourceType.Image)19                        {20                            await request.AbortAsync();21                        }22                        {23                            await request.ContinueAsync();24                        }25                    };26                }27            }28        }29    }30}

EvaluateOnNewDocumentAsync

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            using (var page = await browser.NewPageAsync())12            {13                await page.EvaluateOnNewDocumentAsync(@"() => {14                    Object.defineProperty(navigator, 'webdriver', {15                        get: () => undefined16                    })17                }");18                await page.WaitForSelectorAsync(".string-major");19                var userAgent = await page.EvaluateExpressionAsync<string>("navigator.userAgent");20                Console.WriteLine(userAgent);21            }22        }23    }24}25using System;26using System.Threading.Tasks;27using PuppeteerSharp;28{29    {30        static async Task Main(string[] args)31        {32            {33            };34            using (var browser = await Puppeteer.LaunchAsync(options))35            using (var page = await browser.NewPageAsync())36            {37                await page.MainFrame.EvaluateOnNewDocumentAsync(@"() => {38                    Object.defineProperty(navigator, 'webdriver', {39                        get: () => undefined40                    })41                }");42                await page.WaitForSelectorAsync(".string-major");43                var userAgent = await page.EvaluateExpressionAsync<string>("navigator.userAgent");44                Console.WriteLine(userAgent);45            }46        }47    }48}49using System;50using System.Threading.Tasks;51using PuppeteerSharp;52{53    {54        static async Task Main(string[] args)55        {56            {57            };

EvaluateOnNewDocumentAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2await page.EvaluateOnNewDocumentAsync(@"() => {3    Object.defineProperty(navigator, 'webdriver', {4        get: () => undefined5    });6}");7var page = await browser.NewPageAsync();8await page.EvaluateFunctionAsync(@"() => {9    Object.defineProperty(navigator, 'webdriver', {10        get: () => undefined11    });12}");13await page.EvaluateFunctionAsync(@"() => {14    return navigator.webdriver;15}");16await page.EvaluateFunctionAsync(@"() => {17    return navigator.webdriver;18}");19await page.EvaluateFunctionAsync(@"() => {20    return navigator.webdriver;21}");

EvaluateOnNewDocumentAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            {9                Args = new string[] { "--window-size=1920,1080" }10            };11            using (var browser = await Puppeteer.LaunchAsync(options))12            {13                var page = await browser.NewPageAsync();14                await page.EvaluateOnNewDocumentAsync(@"() => {15                    Object.defineProperty(navigator, 'webdriver', {16                        get: () => undefined17                    })18                }");19                await page.ScreenshotAsync("screenshot.png");20            }21        }22    }23}

EvaluateOnNewDocumentAsync

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            {13            };14            using (var browser = await Puppeteer.LaunchAsync(options))15            {16                using (var page = await browser.NewPageAsync())17                {18                    await page.EvaluateOnNewDocumentAsync("() => { window.alert = () => { }; }");19                }20            }21        }22    }23}

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