// Unique id for the current document/navigation. Should be different after
// each page load and for each tab. Should be unpredictable and secret while
// in use.
let _sri: string;
try {
  const data = window.crypto.getRandomValues(new Uint8Array(9));
  _sri = btoa(String.fromCharCode(...data)).replace(/[/+]/g, '_');
} catch (_) {
  _sri = Math.random().toString(36).slice(2, 12);
}

const sri = _sri;

export default sri;