Warning: a promise was rejected with a non-error: [object Object]

[foxhound87]

Using FeathersJS only in the production environment after a successful login I get Warning: a promise was rejected with a non-error: [object Object].

I'm using bluebird, if I remove bluebird the failure is silent, I don't get errors or warnings, and it stops the execution of the current action. I don't know if it can be related to feathers or socket.io or component-emitter.

If you need to see my setup the app is: https://github.com/foxhound87/rfx-stack

Warning: a promise was rejected with a non-error: [object Object]
    at Socket.on (http://localhost:3000/build/bundle.js:49005:9)
    at Socket.Emitter.emit (http://localhost:3000/build/bundle.js:49073:21)
    at Socket.onevent (http://localhost:3000/build/bundle.js:48787:11)
    at Socket.onpacket (http://localhost:3000/build/bundle.js:48745:13)
    at Manager.<anonymous> (http://localhost:3000/build/bundle.js:37783:16)
    at Manager.Emitter.emit (http://localhost:3000/build/bundle.js:49073:21)
    at Manager.ondecoded (http://localhost:3000/build/bundle.js:48264:9)
    at Decoder.<anonymous> (http://localhost:3000/build/bundle.js:37783:16)
    at Decoder.Emitter.emit (http://localhost:3000/build/bundle.js:29390:21)
    at Decoder.add (http://localhost:3000/build/bundle.js:37350:13)
    at Manager.ondata (http://localhost:3000/build/bundle.js:48254:17)
    at Socket.<anonymous> (http://localhost:3000/build/bundle.js:37783:16)
From previous event:
    at authenticateSocket (http://localhost:3000/build/bundle.js:116466:11)
    at http://localhost:3000/build/bundle.js:116351:49
From previous event:
    at http://localhost:3000/build/bundle.js:116342:44
From previous event:
    at Object.app.authenticate (http://localhost:3000/build/bundle.js:116331:26)
    at AuthStore.login (http://localhost:3000/build/bundle.js:51286:31)
    at helper (http://localhost:3000/build/bundle.js:143958:62)
    at helper (http://localhost:3000/build/bundle.js:143975:13)
    at helper (http://localhost:3000/build/bundle.js:143975:13)
    at access (http://localhost:3000/build/bundle.js:143941:11)
    at dispatch (http://localhost:3000/build/bundle.js:29245:40)
    at handleOnSubmitFormLogin (http://localhost:3000/build/bundle.js:49642:29)
    at Object.invokeGuardedCallback (http://localhost:3000/build/bundle.js:35690:13)
    at executeDispatch (http://localhost:3000/build/bundle.js:31089:22)
    at Object.executeDispatchesInOrder (http://localhost:3000/build/bundle.js:31112:6)
    at executeDispatchesAndRelease (http://localhost:3000/build/bundle.js:28554:23)
    at executeDispatchesAndReleaseTopLevel (http://localhost:3000/build/bundle.js:28565:11)
    at Array.forEach (native)
    at forEachAccumulated (http://localhost:3000/build/bundle.js:47496:10)
    at Object.EventPluginHub.processEventQueue (http://localhost:3000/build/bundle.js:28727:8)
    at runEventQueueInBatch (http://localhost:3000/build/bundle.js:140232:19)
    at Object.ReactEventEmitterMixin.handleTopLevel [as _handleTopLevel] (http://localhost:3000/build/bundle.js:140243:6)
    at handleTopLevelImpl (http://localhost:3000/build/bundle.js:140325:25)