After 6 days, It works perfectly. Thanks you guys ! To summarize you have to : Change line 56 from this.scheduleUpdate(this.config.initialLoadDelay); to this.scheduleUpdate(this.config.updateInterval) Change line 169 from setTimeout(function() { to setInterval(function() { Optionnal, you can adjust timers at lines 13, 14 and 19 Have fun :-)