Does Ie8 Out-Of-The-Box Have Support For 'Localstorage'

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.

IE8 and localStorage support

You can try to set and read localStorage.

Some browsers return a security error
if cookies are disabled or you are working with file: protocol.

function hasStorage(){
    try{
        localStorage.setItem('test', '7');
        if(localStorage.getItem('test')=== '7'){
            localStorage.removeItem('test');
            return true;
        }
    }
    catch(er){}
    return false;
}

alert(hasStorage())

HTML5 localStorage getItem issue in IE8

Try this. A little more direct if you're already using try/catch.

Demo:

Script:

function supports_html5_storage() {
    try {
        window.localStorage.setItem( 'checkLocalStorage', true );
        window.localStorage.removeItem( 'checkLocalStorage' );
        return true;
    } catch ( error ) {
        return false;
    };
};

document.getElementById( 'result' ).textContent = 
    'localstorage: ' + supports_html5_storage();

HTML:

<div id="result"></div>

localStorage' is null or not an object Error in IE8

As per my understanding IE8 give storage to only valid domains. Try placing your example in some Web-server it should resolve the issue.

I faced the same issue when I tested it as an individual file but when i placed it in a server(Tomcat in my case) it just worked fine.

local storage in IE

Ensure you are using the proper HTML5 Doctype:

<!DOCTYPE html>

and that you are in IE8 mode (ensure you haven't enabled some compatibility IE7 mode).

Where in the filesystem does IE8 store values stored in localStorage?

The location of local storage on the file system is most likely an implementation detail that is not guaranteed to always be the same from version to version (it could even change with a service pack or update to IE).

To clear local storage using the approved methods, see Clearing the Storage Areas on the Introduction to DOM Storage MSDN page:

Clearing the Storage Areas

Session state is released as soon as
the last window to reference that data
is closed. However, users can clear
storage areas at any time by selecting
Delete Browsing History from the Tools
menu in Internet Explorer, selecting
the Cookies check box, and clicking
OK. This clears session and local
storage areas for all domains that are
not in the Favorites folder and resets
the storage quotas in the registry.
Clear the Preserve Favorite Site Data
check box to delete all storage areas,
regardless of source.

To delete key/value pairs from a
storage list, iterate over the
collection with removeItem or use
clear to remove all items at once.
Keep in mind that changes to a local
storage area are saved to disk
asynchronously.

An alternative to using the approved methods is to use a tool like Process Monitor to watch disk and Registry accesses while you write something to window.localStorage. Unfortunately, if you see it writing to a file like %userprofile%\Cookies\index.dat it would probably be unwise to delete that file (since it contains information about all the other cookies IE knows about).

EDIT: Using my own suggestion I found that local storage seems to be at %userprofile%\Local Settings\Application Data\Microsoft\Internet Explorer\DOMStore (in Windows XP, Vista and Windows 7 will be slightly different). They are just XML files but I'm not sure how safe they are to delete because of the index.dat (which may retain information about the existence of the XML files or their contents).

ie8 Expected Identifier error - Angular

IE8 doesn't support reserved words as literal object properties. Use

$scope['delete']

instead.

How to save more than 4kb of data on user's local storage using javascript?

Use Local Storage.

It allows you to store a maximum of 5 MB.

Example:

localStorage.setItem('bar', 'myValue');
var value = localStorage.getItem('bar');

value is now "myValue".

Details: http://diveintohtml5.info/storage.html

sessionStorage in old versions of Internet Explorer

So apparently, sessionStorage is valid in IE 7 and 8.
I was just deleting my cache wrong in the browser before switching the dev tools emulator from IE11 to IE 7 or 8. I was able to fix this by unchecking the top box inside of the 'delete history' prompt in IE:
Sample Image

Earlier, sessionStorage was coming back as 'undefined or null' in IE 7 and 8 in my dev tools console - but I think this was a because of a separate issue. It isn't undefined - it works.

I believe localStorage actually is invalid in IE < 8 though - so if localStorage is your problem, this link is helpful: HTML5 Local Storage fallback solutions

Does Ie8 Out-Of-The-Box Have Support For 'Localstorage'