dpd.post inside dpd-event job does not trigger emit to client browser

[ramstein74]

Hello i´m trying to notify the user browser when a dpd-event job inserts a record in a collection.
in the web app i have this code:
dpd.lixo.on('changed',function(a){console.log(a)})

then i a dpd-event job i have the next

dpd.lixo.post({"nome": "Hello world","idade":22}).then(function(todo) {
console.log(todo);
}, function(err) {
console.log(err);
});

creates a new record in lixo collections but the on post code in lixo collection does not execute this single line:
emit("lixo:changed", "new record");
when i execute the same post code in the browser console i get the emitted message
when i use postman chrome app to do the same post request it triggers the lixo collection emit code to the browser.

Why dpd-event job does not trigger the emit action?
regards
António