我尝试MutationObserver在我的网页中添加一个跟踪图像中的更改src,但这不起作用.
这是使用的代码:
setTimeout(function() {
document.getElementById("img").src = "http://i.stack.imgur.com/aQsv7.jpg"
}, 2000);
var target = document.querySelector('#img');
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
console.log(mutation.type);
});
});
var config = {
attributes: true,
childList: false,
characterData: false
};
observer.observe(target, config);
observer.disconnect();<img src="http://i.stack.imgur.com/k7HT5.jpg" id="img" class="pic" height="100">