javascript - YUI3 custom async events not working on Y.Global -

i trying implement async event leveraging yui3 library. application had been notified event passed late subscription, simular load or ready events do.

here is have far, no luck around.

yui().use('event', 'event-custom', function(y){    function oncustomevent () {     y.global.on('custom:event', function(){       alert('custom fired');     });   }   window.settimeout(oncustomevent, 2000); });  yui().use('event', 'event-custom', function(y){    y.publish('custom:event', {     emitfacade: true,     broadcast: 2,     fireonce: true,     async: true   });    function firecustomevent () {     y.global.fire('custom:event');   }   window.settimeout(firecustomevent, 1000); }); 

if give hint what's wrong code? thank you.

upd:

after bit investigations turns out async events work fine inside 1 use() instance , when not using global broadcasting. that's either bug or limitation. still discovering

okay, @ high level inconsistency global events (how understood it) lays in sandbox nature of y object. @ point fire sync events globally cause async parameters subscribe custom event made on y instance , not passed further (and yui uses defaults or whatever). possibly makes sense why such kind of events should fireable globally? either miss substantial part of yui , candidate bug report.

anyway not have time dive deeper in yui , what practically need wrapped in 40 lines of code:

yui.add('async-pubsub', function(y) {   var subscribers = {};    if ( !yui.asyncpubsub ) {     yui.namespace('asyncpubsub');     yui.asyncpubsub = (function(){       var eventsfired = {};       function dopublishfor(name) {         var subscriber;          ( subscriber in subscribers ) {           if ( subscriber === name ) {             (subscribers[name]).call();             delete ( subscribers[name] ); // keep planet clean           }           }       }       return {         'publish': function(name, options) {           eventsfired[name] = options || {};           dopublishfor(name);         },         'subscribe': function(name, callback) {           if ( subscribers[name] ) {             y.log('more 1 async subscriber per instance, overriding it.', 'warning', 'async-pubsub');           }           subscribers[name] = callback || function() {};           if ( eventsfired[name] ) {             window.settimeout(               function () {                 dopublishfor(name);               },0             );           }         }       };       })();   }   y.asyncpubsub = yui.asyncpubsub; }, '1.0', {requires: []}); 

there limitation , room optimization here, ability subscribe 1 action 1 event per use instance, not need more. try debug , enhance snippet in future if there interest.

still curious yui behavior, bug or something?