Get list of all browser permissions.

getAllPermissions.js

const getAvailablePermissions = async () => {
  const allFeatures = document.featurePolicy
    .features()
    .sort()
    .map((i) => ({ name: i }));
  const availablePermissions = [];
  const nonPermissionFeatures = [];

  for (let index = 0; index < allFeatures.length; index++) {
    const feature = allFeatures[index];
    try {
      const permissionStatus = await navigator.permissions.query(feature);
      availablePermissions.push({
        feature: feature.name,
        permission: permissionStatus.name,
        state: permissionStatus.state,
      });
    } catch (error) {
      nonPermissionFeatures.push({
        feature: feature.name,
        error: error.message.split(':')[2].trim(),
      });
    }
  }

  return { availablePermissions, nonPermissionFeatures };
};

await getAvailablePermissions();