javascript - Deleting the local storage of a specific domain - Stack Overflow

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I'm making an extension and while I can delete all the cookies of a specified domain, I can't delete its local storage.

So for example, if I visited The Telegraph's website, it keeps a local storage in my machine:

Origin: /

Size on disk: 6.0 KB

I have tried using the remove() method from the storage api:

StorageArea.remove("/");

and I'm getting the following error:

Error in event handler for browserAction.onClicked: StorageArea is not defined
Stack trace: ReferenceError: StorageArea is not defined

How can I programmatically make this work?

I'm making an extension and while I can delete all the cookies of a specified domain, I can't delete its local storage.

So for example, if I visited The Telegraph's website, it keeps a local storage in my machine:

Origin: http://www.telegraph.co.uk/

Size on disk: 6.0 KB

I have tried using the remove() method from the storage api:

StorageArea.remove("http://www.telegraph.co.uk/");

and I'm getting the following error:

Error in event handler for browserAction.onClicked: StorageArea is not defined
Stack trace: ReferenceError: StorageArea is not defined

How can I programmatically make this work?

• javascript
• google-chrome
• google-chrome-extension
• google-chrome-devtools

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2 Answers 2

Sorted by: Reset to default 8

chrome.storage is a pletely different API pared to localStorage. The former is only available to extensions, while the latter is specific to the domain of the website.

If you want to modify or clear the data in localStorage for a specific domain, then just insert a content script in the page that invokes localStorage.clear().

chrome.browserAction.onClicked.addListener(function(tab) {
    chrome.tabs.executeScript(tab.id, {code: 'localStorage.clear()'});
});

If you want to clear the localStorage of a different origin, you have to load a page from that origin in a tab or frame and insert a content script in it. For example:

// background.js
var f = document.createElement('iframe');
f.sandbox = ''; // Sandboxed = disable scripts, etc.
f.src = 'http://example./#someuniqueid';
f.onloadend = function() {
    f.remove();
};

// content script, declared in manifest file (read the documentation)
if (location.hash === '#someuniqueid') {
    localStorage.clear();
}

try using

   StorageArea.clear(function callback)

.remove accepts key string or array of keys to remove specific items. Also i'm not sure if it will access storage of specific domains. Try to check url before clearing

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