javascript - Does IE8 out-of-the-box have support for 'localStorage'

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javascript - Does IE8 out-of-the-box have support for 'localStorage'

posted Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - Does IE8 out-of-the-box have support for 'localStorage'

I am trying to use the HTML5 feature localStorage. According to this blog it can be done using IE8, however when I try to use it I get a javascript error 'localStorage is null or not an object'

So my question: can localStorage be used by IE8 out-of-the-box? Here is my code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="X-UA-Compatible" content="IE=8" />
    <title>IE8 - DOM Storage</title>
    <script type="text/javascript"> 
        function Save() {
            localStorage.setItem('key','value');            
        }        
    </script>
</head>
<body>        
    <button onclick="Save();">
        Save
    </button>  
</body>
</html>

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1 Reply

深蓝 · Answer 1 · 2021-10-16T22:24:21+0000

It does support localStorage, though you need to be in IE8 mode (this will not work in IE7 mode).

To check that you're working in IE8 mode, load up the developer console. At the top, make sure that IE8 mode is selected. Standards mode would also be nice.

One thing that you also want to make sure of is that you're using the HTML5 doctype. You shouldn't be able to use an XHTML doctype with HTML5 features.

<!DOCTYPE html>

Using this doctype should not impact your browser support.

Also, make sure you access window.localStorage. It shouldn't be an issue, but IE has been known to host weirder issues. Perhaps it's looking for a locally scoped localStorage object? Who knows.

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javascript - Does IE8 out-of-the-box have support for 'localStorage'

javascript - Does IE8 out-of-the-box have support for 'localStorage'

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