Why the modification of http header not work in CEF?

Question

I implemented CefRequestHandler interface. In the OnBeforeBrowse method I want to add custom http header but it seems not work. The related code as below

virtual bool OnBeforeBrowse( CefRefPtr< CefBrowser > browser, CefRefPtr< CefFrame > frame,
    CefRefPtr< CefRequest > request, CefRequestHandler::NavType navType, bool isRedirect )
{
    CefRequest::HeaderMap hdrMap;
    request->GetHeaderMap(hdrMap);

    hdrMap.insert(std::make_pair("Test", "test"));
    request->SetHeaderMap(hdrMap);
    return false;
}

The request parameter is passed as a pointer so I think the action performed on it should take effect, but actually not.

I'm new to use CEF library, I want't to know is there a way to add custom header before navigation? Thank you in advance!

Answer 1

You can't modify request there: CefRequestHandler::OnBeforeBrowse()

but try to implement this: CefRequestHandler::OnBeforeResourceLoad()