Can Recaptcha V3 use navigator.sendBeacon transport method

Question

In Google Analytics you can specify the transport method and use "beacon" which causes the browser to use the navigator.sendBeacon method which is a non-blocking method.

https://developer.mozilla.org/en-US/docs/Web/API/Navigator/sendBeacon

For example, here is how you would call Analytics to fire an event using the navigator.sendBeacon method:

   ga('send', 'event', {
    eventCategory: 'Outbound Link',
    eventAction: 'click',
    eventLabel: event.target.href,
    transport: 'beacon'
  });

I am trying to determine if it is possible to use the grecaptcha.execute method using the same transport method. It seems that sendBeacon is only allowed to use a POST method and the grecaptcha.execute is GET. Here is the example from Recaptcha V3 docs:

grecaptcha.ready(function() {
      grecaptcha.execute('reCAPTCHA_site_key', {action: 'homepage'}).then(function(token) {
         ...
      });
  });

And this is what I would like to do (but does not work)

grecaptcha.ready(function() {
      grecaptcha.execute('reCAPTCHA_site_key', {action: 'homepage'}, transport: 'beacon').then(function(token) {
         ...
      });
  });

Has anybody been able to find a way to use recaptcha with the beacon transport method?