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Youtube video API onStateChange event cannot be used to change video

I want to use the onStateChange event provided by the Youtube API to listen to for the end of the video and then get a new video to play in the player. However, this does not seem to be possible for some reason.
function onPlayerStateChange(event) {
if(event.data === 0) {
console.log('done');
goNext();
}
}
function goNext() {
player.loadVideoById('JBJ1VPBrCl0', 0, 'default');
}
I register the event handler like this
player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '530',
width: '640',
videoId: '0Bmhjf0rKe8',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
Problem is: if I call my function goNext() manually, the video changes. If I wait for the video termination, the 'done' message is printed to the console, but the video does not change. Any ideas what am I doing wrong?
I've put up a fiddle here. Thanks!
http://jsfiddle.net/PHXY2/

FWIW, your fiddle example worked fine for me (after the video ends it automatically starts playing the "Short - Cat Meowing - Funny Cat Video - Red Laser" video ) Did you happen to have any YouTube-related browser extensions installed earlier? Some have been known to cause issues with the YT API.

Check if Embedded YouTube Video has Finished

So I'm writing a TamperMonkey script that sends specific videos to YouTube's embedded player however I want to automatically send them back once the video is finished.
So for example, video http://youtube.com/watch?v=XXXXX it would redirect to http://youtube.com/v/XXXXX. And then, once the video is complete, it would use window.history.go(-2) (as -1 would go to the normal page causing a loop).
The problem I'm having is that I haven't been able to get the second part, the function that runs when the video finishes, to work.
I have tried following the api and looking at other peoples problems and seeing what helped them but I can't seem to get it.
At the moment this is the code I have.
$(document).ready( function() {
var loc = document.location.href;
var l = loc.split('/');
var s = l[4];
var id = s.split('?')[0]
// create youtube player
var player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '100%',
width: '100%',
videoId: id,
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// autoplay video
function onPlayerReady(event) {
event.target.playVideo();
alert('spotted');
}
// when video ends
function onPlayerStateChange(event) {
if(event.data === 0) {
window.history.go(-2);
}
}
});
I would appreciate it if someone would work with me to get this script working.
Thanks.

Youtube API - not loading if the user in not in the tab (FireFox)

I´ve been messing around with the youtube API for a while now.
I´m currently making a website where users can create custom playlists from different sources (youtube, soundcloud,...).
After one video is finished it checks on the go to the url with the next video.
The problem is that when you are in another tab than the one where the video plays and the next video loads, the API won´t load.
The only way to avoid this is by opening the link in a own browser.
(I use firefox btw)
It works with Internet Explorer though!
For the html part: I use the standard Iframe code
API:
<script>
var player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: '<?php echo $link; ?>',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
}
function onPlayerReady(event) {
event.target.playVideo();
}
function onPlayerStateChange(event) {
console.log('State is:', >event.data);
if(event.data === 0) {
window.location="link";
}
}

Youtube API calling player functions after player is initated

This is my first use of the youtube api and I'm finding it hard understanding the documentation. Basically I have multiple videos on the page, when you click one it pops up in a lightbox and plays the correct video. All of this works fine.
The client now wants all the videos to be automatically muted on start, and once you finish the video they want the frame to skip to the right place.
If I use the youtube iframe api i can't seem to be able to update the videoId at all. Below is my code:
var player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '323',
width: '576',
videoId: 'Fy7Li0dMRSY',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
function onPlayerReady(event) {
event.target.mute(); // this does not do anything
event.target.playVideo();
}
var done = false;
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
//setTimeout(stopVideo, 6000);
done = true;
}
}
function stopVideo() {
player.stopVideo();
}
function loadVid(vidID, title){
// loads youtube video with video title & youtube video ID
$('.lightbox .title').html(title);
$('.lightbox iframe').prop('src','https://www.youtube.com/embed/'+vidID+'?rel=0&wmode=transparent&enablejsapi=1');
//player.mute() does not work here
showLightbox();
}
My problem is trying to call the player function to mute inside the loadVid function, it throws back an error (any function throws the same error) and I can't figure out how to use functions such as player.
The error is player.stopVideo is not a function
So how can I mute the video on start? Adding it to onPlayerReady does not work either.

Move the event.target.mute(); to the onPlayerStateChange function like this:
var done = false;
function onPlayerStateChange(event) {
event.target.mute();
if (event.data == YT.PlayerState.PLAYING && !done) {
//setTimeout(stopVideo, 6000);
done = true;
}
}

When you have multiple videos on the page, you still have to call onYouTubePlayerAPIReady for each one. You can pack all your player handlers in there at the same time, but depending on how you have to do it, that's not possible. Instead, you have to figure a way to trick the API. Take a look at my answer here loading multiple video players with youtube api

how to display lightbox after Video Play Finishes?

I have a youtube video.
I want to show a lightbox when it stops playing. I need this to be done using javascript/jQuery or PHP. Ajax is also fine.
I looked for a solution but didn't find one that worked.

If you can use youtube api then, something like this should work:
<script type="text/javascript">
$(document).ready(function() {
var player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'YmHAAqOsBqA',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
function onPlayerReady(event) {
event.target.playVideo();
}
function onPlayerStateChange(event) {
if(event.data === 0) {
//completed playing
//open lightbox
$('#yourElementId a').lightBox();
}
}
});
</script>
Did you mean something like this.
Hope it helps