react-redux-toastr closing alert when losing browser window focus

Question

In a react project and using react-redux-toastr, the following code produces an alert that does not fade out when hovered over:

    const options = {
      timeOut: 0,
      removeOnHoverTimeOut: 0,
      showCloseButton: true,
      position: 'top-center'
    }


  toastrInstance(
    "Test",
    "Test",
    options
  )

But the alert still gets closed when the focus of the browser window is lost. How can I suppress this behavior?