Delphi TWebBrowser get HTML source after AJAX load

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function TBrowser.GetWebBrowserHTML(const WebBrowser: TWebBrowser): string;var  LStream: TStringStream;  Stream : IStream;  LPersistStreamInit : IPersistStreamInit;begin  try    if not Assigned(WebBrowser.Document) then exit;    LStream := TStringStream.Create('', TEncoding.UTF8);    try      LPersistStreamInit := WebBrowser.Document as IPersistStreamInit;      Stream := TStreamAdapter.Create(LStream,soReference);      LPersistStreamInit.Save(Stream,true);      result := LStream.DataString;    finally      LStream.Free();    end;  except  end;end;
 

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