截至今天,在Firefox中,我发现使用YouTube iFrame API的onStateChange无法触发。这似乎是一个新问题-上周完全正常工作的使用相同API和代码的项目现在不能触发其onStateChange事件。这个问题似乎只影响Firefox,Chrome和Internet Explorer可以完全工作。这是一个已知的bug吗?如果是,是否有可用的解决方法?(这里有一个类似的问题here,但它似乎是关于YouTube临时的bug,现在已经被修复了。那里发布的解决方案也似乎无法解决这个问题。)例如,这里有一个使用Google的基本示例的fiddle。播放器应该在六秒后停止,但实际上没有停止:
<!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
<div id="player"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'M7lc1UVf-VE',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// the player should play for six seconds and then stop.
var done = false;
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
setTimeout(stopVideo, 6000);
done = true;
}
}
function stopVideo() {
player.stopVideo();
}
</script>