navigator.sendBeacon with CORS All In One

navigator.sendBeacon with CORS All In One

window.onunload = function () {
  const body = {
    id,
    email,
  };
  const headers = {
    type: 'application/json',
  };
  const blob = new Blob([JSON.stringify(body)], headers);
  navigator.sendBeacon('url', blob);
});

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

JSON-LD

JSON-LD 1.1 Processing Algorithms and API

W3C Recommendation 16 July 2020

https://www.w3.org/TR/json-ld-api/

refs

https://stackoverflow.com/questions/40523469/navigator-sendbeacon-to-pass-header-information

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