How to get request post data OnBeforePopup

[GITMoor]

When creating a new tab, sometimes its no enough to just pass the url to the new browser instance. So, is there a way to retrieve post data, headers from request to pass then into a new browser instance?

[amaitland]

So, is there a way to retrieve post data, headers from request to pass then into a new browser instance?

No. If you are canceling popup creation then that's not possible.

If you are using WinForms then you can use code like the example shown in #3529 (comment)

[GITMoor]

Yeah, that looks promising, but i noticed that if you close tab with hosting ChromiumWebBrowser all popups in other tabs will continue to popup in new window, is there a way to make them pop up as before closing the main tab or i need to prevent closing main tab?

[amaitland]

When you dispose the ChromiumWebBrowser then the LifeSpanHandler reference is freed. The LifeSpanHandler opens the popups in the ChromiumHostControl, so without it they open by default in a new window.

You don't need to keep the tab open, you'd just need to stop the ChromiumWebBrowser from being disposed. So remove it from it's parent and Dispose of it later when all popups are closed.

I've not looked into this scenario to see if it's possible to provide better support than that. You'd need to add a breakpoint to https://github.com/cefsharp/CefSharp/blob/cefsharp/106/CefSharp.Core.Runtime/Internals/ClientAdapter.cpp#L117 and see if it was still called after the ChromiumWebBrowser had been disposed to know if any improvements could be made.

[GITMoor]

Setting ChromiumWebBrowser.Parent to null before disposing its parent form works for me, thanks!