Cefsharp 铬浏览器仅在 Windows Server 2012 上首次加载

Question

您好，我有 wpf 桌面应用程序。我正在使用 cefsharp.wpf 铬浏览器打开网页。我从 nuget pacakge manager（版本 87.1.132）添加了 cefsharp。它在我的系统（Windows 10、64 位操作系统）中运行良好。

但是当我在客户端环境（windows 2012 r2，64 位操作系统）中运行我的 exe 时，会发生奇怪的事情，即浏览器仅在我第一次尝试时才加载。基本上我有一个按钮和点击按钮我打开一个窗口，其中有cefsharp铬浏览器。因此，当窗口第一次打开时，浏览器不会加载任何内容。现在，如果我关闭窗口并再次打开它，浏览器将重定向到我的 url。只有第一次浏览器不加载。在第一次之后它每次都会加载，直到我关闭 exe 并重试。

如果我关闭 exe 并再次打开它并尝试打开该窗口，再次浏览器将不会加载任何内容。然后我关闭该窗口并重试浏览器将完美运行。

我所做的非常简单，我在一个窗口中的 xaml 文件中有浏览器，在加载窗口时在 cs 文件中我为浏览器分配一个地址，仅此而已。

在xml中 <cefSharp:ChromiumWebBrowser x:Name="browser" />

在加载的窗口上的 xaml.cs 中

browser.address = url; // 我正在使用www.xero.com 登录网址（我认为这并不重要，因为它确实可以第二次使用）。

谁能告诉我这里发生了什么？

我有 cefsharp 的 debug.log 文件，上面写着：

[0317/231700.441:WARNING:resource_bundle.cc(431)] locale_file_path.empty() for locale 
[0317/231700.442:ERROR:alloy_main_delegate.cc(539)] Could not load locale pak for en-US
[0317/231700.537:ERROR:viz_main_impl.cc(150)] Exiting GPU process due to errors during initialization
[0317/231700.542:ERROR:browser_gpu_channel_host_factory.cc(168)] Failed to launch GPU process.
[0317/232456.104:WARNING:resource_bundle.cc(1086)] locale resources are not loaded
[0317/232456.105:WARNING:resource_bundle.cc(1086)] locale resources are not loaded
[0317/232456.421:WARNING:resource_bundle.cc(431)] locale_file_path.empty() for locale 
[0317/232456.422:ERROR:alloy_main_delegate.cc(539)] Could not load locale pak for en-US
[0317/232458.805:INFO:CONSOLE(333)] "Refused to connect to 'https://analytics.google.com/g/collect?v=2&tid=G-Q622B96ZEQ&gtm=2oe330&_p=609855886&sr=1366x768&_gaz=1&ul=en-us&cid=1821054078.1615983899&_s=1&dl=https%3A%2F%2Flogin.xero.com%2Fidentity%2Fuser%2Flogin%3FReturnUrl%3D%252Fidentity%252Fconnect%252Fauthorize%252Fcallback%253Fresponse_type%253Dcode%2526client_id%253DC35C4505FBEA4D31A8E5A0404FDA9E0E%2526redirect_uri%253Dhttp%25253A%25252F%25252Flocalhost%2526scope%253Dopenid%252520profile%252520email%252520files%252520accounting.transactions%252520accounting.tra...2520accounting.journals.read%252520accounting.settings%252520accounting.settings.read%252520accounting.contacts%252520accounting.contacts.read%252520accounting.attachments%252520accounting.attachments.read%252520offline_access%252520payroll.employees%252520payroll.employees.read%2526state%253D108Sydney%2526code_challenge%253D3b5GLmW09QQB-C4Sq8ud0M0sEYpqFr5_KY20way8l1U%2526code_challenge_method%253DS256&dt=Login%20%7C%20Xero%20Accounting%20Software&sid=1615983898&sct=1&seg=0&en=page_view&_fv=1&_nsi=1&_ss=1' because it violates the following Content Security Policy directive: "default-src 'self' https://browsercheck.xero.com https://edge.xero.com https://js-agent.newrelic.com https://bam.nr-data.net https://telemetry.ext.platformdevelopment.xero.com https://api.mixpanel.com https://www.googletagmanager.com https://www.facebook.com https://connect.facebook.net https://p.adsymptotic.com https://*.fls.doubleclick.net https://*.linkedin.com https://www.google-analytics.com https://identity.xero.com https://login.xero.com https://go.xero.com https://static.xero.com 'unsafe-inline'". Note that 'connect-src' was not explicitly set, so 'default-src' is used as a fallback.
", source: https://www.googletagmanager.com/gtag/js?id=G-Q622B96ZEQ&l=dataLayer&cx=c (333)
[0317/232458.806:INFO:CONSOLE(333)] "Refused to connect to 'https://stats.g.doubleclick.net/g/collect?v=2&tid=G-Q622B96ZEQ&cid=1821054078.1615983899&gtm=2oe330&aip=1' because it violates the following Content Security Policy directive: "default-src 'self' https://browsercheck.xero.com https://edge.xero.com https://js-agent.newrelic.com https://bam.nr-data.net https://telemetry.ext.platformdevelopment.xero.com https://api.mixpanel.com https://www.googletagmanager.com https://www.facebook.com https://connect.facebook.net https://p.adsymptotic.com https://*.fls.doubleclick.net https://*.linkedin.com https://www.google-analytics.com https://identity.xero.com https://login.xero.com https://go.xero.com https://static.xero.com 'unsafe-inline'". Note that 'connect-src' was not explicitly set, so 'default-src' is used as a fallback.
", source: https://www.googletagmanager.com/gtag/js?id=G-Q622B96ZEQ&l=dataLayer&cx=c (333)
[0317/232458.819:INFO:CONSOLE(0)] "Refused to load the image 'https://www.google.com.au/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&tid=G-Q622B96ZEQ&cid=1821054078.1615983899&gtm=2oe330&aip=1&z=174504349' because it violates the following Content Security Policy directive: "img-src 'self' https://browsercheck.xero.com https://edge.xero.com https://js-agent.newrelic.com https://bam.nr-data.net https://telemetry.ext.platformdevelopment.xero.com https://api.mixpanel.com https://www.googletagmanager.com https://www.facebook.com https://connect.facebook.net https://p.adsymptotic.com https://*.fls.doubleclick.net https://*.linkedin.com https://www.google-analytics.com https://identity.xero.com https://login.xero.com https://go.xero.com https://static.xero.com".
", source: https://login.xero.com/identity/user/login?...

我验证了区域设置文件夹，它与我的本地系统中的相同。它说拒绝连接，因为它违反了某些东西..然后当我第二次尝试时它不应该工作。所以我很困惑这里发生了什么。谁能告诉我这里出了什么问题？

帮助！

Answer 1

这是非常基本的。我还没有初始化 Cef。因为它在没有它的情况下第二次工作。当应用程序启动时，我确实在 App.xaml.cs 中对其进行了初始化，现在它每次都可以正常工作。虽然我仍然想知道它为什么会起作用（如果我在没有初始化 Cef 的情况下第二次加载窗口）。

这是我添加的内容。

 if (!Cef.IsInitialized)
                {
                    try
                    {
                        //Perform dependency check to make sure all relevant resources are in our output directory.
                        Cef.Initialize(new CefSettings(), performDependencyCheck: true, browserProcessHandler: null);
                    }
                    catch(Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                        ErrorLogger.LogError(ex.GetType().ToString(), ex, GetType().FullName, System.Reflection.MethodBase.GetCurrentMethod().Name);
                    }
                }

由于它在没有初始化 Cef 的情况下在我的系统中运行良好，我认为这样做不是强制性的。不过好像很有必要。