Does IE8 out-of-the-box have support for ‘localStorage’

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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