anchor.diff:  
       procedure Content_Render(FRefreshKeyman: Boolean = False; const Query: string = ''); virtual;
       procedure WndProc(var Message: TMessage); override;  // I2720
  +
  +    procedure DoOpenHelp;
     public
       constructor Create(AOwner: TComponent); override;
       procedure SetFocus; override;  // I2720
  
positive.code:     FDialogName: WideString;
      procedure WMUser_FormShown(var Message: TMessage); message WM_USER_FormShown;
      procedure WMUser_ContentRender(var Message: TMessage); message WM_USER_ContentRender;
      procedure ContributeUILanguages;
    protected
      cef: TframeCEFHost;
  
negative.code: function IsLocalURL(URL: WideString): Boolean;
  begin
    Result := (Copy(URL, 1, 5) = 'file:') or (Copy(URL, 1, 1) = '/');
  end;
  
  procedure TfrmWebContainer.WMSysCommand(var Message: TWMSysCommand);
  begin
    with Message do
    begin
      if (CmdType and $FFF0 = SC_CONTEXTHELP)
        then DoOpenHelp
        else inherited;
    end;
  end;
  
  procedure TfrmWebContainer.WMUser_ContentRender(var Message: TMessage);
  