Initiator.RequestId is always empty in Network.RequestWillBeSent

[DevCyber23]

Hi,

I am trying to use the DevTools to get a unique identifier of the initiator request, so that when I intercept a request I can tie it back to its parent request. I use Network.RequestWillBeSent to trap GET requests. This callback receives (in the "args" parameter) an Initiator object which should contain a RequestId and a Url, among other things. However, in all my tests I have never once seen the RequestId field populated, it's always empty (while fields like the Url, the Headers and the Stack are correctly set in many cases).
Is there a specific configuration that I need to enable to populate this Initiator.RequestId field? If not, can you please populate the RequestId with the appropriate identifier of the Initiator? In order to be useful, args.Initiator.RequestId should be the same as args.RequestId so that it is possible to correlate and identify the Initiator to previously seen requests. (Example: I intercept a request, it has RequestId 23. Then I receive a second request, it has RequestId 24, and Initiator.RequestId set to 23, so I know that 23 is the parent of 24).
By any chance, can these information be made available in GetResourceRequestHandler (from CefSharp.Handler.RequestHandler)? I have a similar problem there, where the callback receives an IRequest with a usually valid RequestId, and it also receives an Initiator string that is empty or just the main Url. (Just to be clear, I would like the initiator to be the same as reported in the Network tab in the browser's developer tools GUI.)

Thanks!

[amaitland]

You'll need to disable CEFs network interceptor to get the devtools network events to work properly.

https://github.com/cefsharp/CefSharp.Dom/blob/main/lib/PuppeteerSharp.Tests/DevToolsContextLoaderFixture.cs#L47

If not, can you please populate the RequestId with the appropriate identifier of the Initiator? I

You'll need to discuss that with the CEF maintainer

https://github.com/chromiumembedded/cef

By any chance, can these information be made available in GetResourceRequestHandler (from CefSharp.Handler.RequestHandler)? I

Again you'll need to discuss with the CEF maintainer.

If CEF adds support then it can be exposed as part of the cefsharp API (cefsharp is one of many wrappers).

[DevCyber23]

Thanks for replying! I added "cefSettings.CefCommandLineArgs.Add("disable-request-handling-for-testing");" but it doesn't seem to make a difference. The initiator id is still missing and I don't see any improvement in the other attributes.
Is there anything else I can try?

Regarding "args.Initiator.RequestId" from Network.RequestWillBeSent: could you point me to the CefSharp code that populates this?

Thanks!

[amaitland]

https://github.com/cefsharp/CefSharp/blob/master/CefSharp.Core/DevTools/DevToolsClient.cs#L245