require('zone.js/dist/zone-node.js');
const Bluebird = require('bluebird');
require('zone.js/dist/zone-bluebird.min');
Zone[Zone['__symbol__']('bluebird')](Bluebird);

Zone.current.fork({
  name: 'zone_A'
}).run(() => {
  new Bluebird((resolve, reject) => {
    console.log('in promise A: ' + Zone.current.name);
    resolve(1);
  }).then(r => {
    console.log('inside then A: ' + Zone.current.name);
  });
});

Zone.current.fork({
  name: 'zone_B'
}).run(() => {
  new Bluebird((resolve, reject) => {
    console.log('in promise B: ' + Zone.current.name);
    resolve(2);
  }).then(r => {
    console.log('inside then B: ' + Zone.current.name); // expected zone_B, reports zone_A
  });
})