OffScreen - ChromeRuntime doesn't work with LoadURL

[GrabzIt]

OffScreen - ChromeRuntime doesn't work with LoadURL

[amaitland]

However, it does if you remove ChromeRuntime = true.

Given it works with the alloy runtime this likely needs to be fixed in CEF.

[amaitland]

@GrabzIt Looking at the code in more detail, can you defer creation of the browser until after you've subscribed to the event? e.g.

// Create the CefSharp.OffScreen.ChromiumWebBrowser instance
using (var browser = new ChromiumWebBrowser(testUrl, automaticallyCreateBrowser:false))
{
  browser.FrameLoadEnd += Browser_FrameLoadEnd;
  browser.CreateBrowser();
  // Wait 
  Thread.Sleep(20000);
}

[GrabzIt]

Thanks, this approach works and seems to work with further calls to LoadURL and adding and removing the event: e.g.

              using (var browser = new ChromiumWebBrowser(testUrl, automaticallyCreateBrowser: false))
              {
                    browser.FrameLoadEnd += Browser_FrameLoadEnd;
                    browser.CreateBrowser();
                    Thread.Sleep(20000);
                    browser.FrameLoadEnd += Browser_FrameLoadEnd;
                    browser.LoadUrl("https://grabz.it/about/");
                    Thread.Sleep(20000);
              }

        private async static void Browser_FrameLoadEnd(object sender, FrameLoadEndEventArgs e)
        {
            if (e.Frame.IsValid && e.Frame.IsMain)
            {
                Console.WriteLine(e.Url);
                ((ChromiumWebBrowser)sender).FrameLoadEnd -= Browser_FrameLoadEnd;
            }
        }

Is this the way it should be used from now or are the CEF changes to the chrome runtime going to fix the issue?

[amaitland]

Is this the way it should be used from now

That would be my recommendation. Pretty sure I modified most of the examples/tests a while back to use this approach. If there are any outstanding then happy to update them.

are the CEF changes to the chrome runtime going to fix the issue?

From a CefSharp point of view it probably makes sense to defer browser creation automatically if you pass in string.Empty, create the browser on the next load call.

[GrabzIt]

That sounds great thanks.