Can user disable html5 sessionStorage?

Question

can user disable the HTML5 sessionStorage just how he can disable cookies?

Also is sessionStorage will valid till page refresh? I mean what session actually mean, is

Answer 1

Yes. HTML5 sessionStorage (and localStorage) can be disabled, and the data can also be cleared.

It is easy to prevent browsers from accepting localStorage and sessionStorage.

• In FireFox: Type “about:config” in your address bar and hit enter to view your internal browser settings. Scroll down to „dom.storage.enabled“, right click on it and hit „Toggle“ to disable the DOM Storage.

• In Internet Explorer: Select “Extras” -> “Internet Options” -> “Advanced” Tab -> Go to “Security” -> uncheck “Enable DOM-Storage”

• In Chrome: Open “Options” and select “Under the Hood” Tab. Click on “Content settings…”, select “Cookies” and set “Block sites from setting any data”.

Also note: There are some browser security plugins/extras/add-ons that will prevent localStorage. If localStorage / sessionStorage is vital to your page operation you should attempt a test read-write.

Regarding your other question: sessionStorage will survive a page refresh. localStorage will persist between browsing sessions and survive a browser restart.