Unhandled Promise rejection when rejecting Promise in Angular 2 [duplicate]

Answer 1

It should be

p
.then(r => console.log("then: " + r))
.catch(e => console.log("reject: " + e));

p.then(...) alone creates unhandled chain, this bothers Zone.js. If you have dealt with Bluebird's 'unhandled rejections', you may already know the rules.