IE localStorage事件未触发 [英] IE localStorage event misfired
问题描述
在Internet Explorer 9及更高版本中10，localStorage实施会意外触发事件(此处的大线程:对Chrome的localStorage实施不利吗?)
Within Internet Explorer 9 & 10, the localStorage implementation fires events unexpectedly (great thread here: Bug with Chrome's localStorage implementation?)
有人知道阻止storage事件触发在Internet Explorer中启动更改的选项卡的方法吗?
Does anybody know of a way to stop the storage event from firing on tabs that initiated the change within internet explorer?
例如，单击添加按钮时，以下内容不应显示警报，但在IE中会显示警报:
For example the following shouldn't show an alert when the add button is clicked, but it does in IE:
小提琴: http://jsfiddle.net/MKFLs/
<!DOCTYPE html>
<html>
<head>
<title>Chrome localStorage Test</title>
<script type="text/javascript" >
var handle_storage = function () {
alert('storage event');
};
window.addEventListener("storage", handle_storage, false);
</script>
</head>
<body>
<button id="add" onclick="localStorage.setItem('a','test')">Add</button>
<button id="clear" onclick="localStorage.clear()">Clear</button>
</body>
</html>
附带一提，我在这里用MS打开了一个bug. https://connect.microsoft.com/IE/反馈/详细信息/798684/ie-localstorage-event-misfired
On a side note, I've opened a bug with MS here. https://connect.microsoft.com/IE/feedback/details/798684/ie-localstorage-event-misfired
也许它不会关闭.....
Maybe it won't get closed.....
推荐答案
将脚本更改为以下内容可防止在焦点窗口中处理任何存储事件.
Changing your script to the following prevents the handling of any storage events in the focused window.
这并不是您所要求的，因为我认为这需要对浏览器进行补丁，但是它会使IE 9/10符合规范，而对其他浏览器(除了全局浏览器和听众).
This isn't precisely what you asked, as I believe that would require a patch to the browser, but it causes IE 9/10 to conform to the spec while having no adverse effects on other browsers (other than the global and listeners).
<script type="text/javascript" >
var focused;
window.addEventListener('focus', function(){focused=1;}, false);
window.addEventListener('blur', function(){focused=0;}, false);
var handle_storage = function (e) {
if(!focused)
alert("Storage",focused);
};
window.addEventListener("storage", handle_storage, false);
</script>
有关更新的，符合标准的行为，请参见此小提琴.
See this fiddle for the updated, conforming behavior.
以下内容也可以工作，并且避免了以监听窗口焦点为代价的侦听器:
The following also works and avoids the listeners at the cost of a runtime check of window focus:
<script type="text/javascript" >
var handle_storage = function (e) {
if(!document.hasFocus())
alert("Storage");
};
window.addEventListener("storage", handle_storage, false);
</script>
这篇关于IE localStorage事件未触发的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
