Using session-storage across subdomains

javascript session-storage
binfull picture binfull · Jul 31, 2014 · Viewed 20k times · Source

I have two domains domain1.site.com and domain2.site.com, i have set session-storage in domain1.site.com and then not able to get session-storage on other domain domain2.site.com from same tab. Is there any other way which can be used identify a tab when navigated across sub-domains?

Answer

RiZKiT picture RiZKiT · Jan 20, 2017

The question is a bit older, but maybe the following helps others.

There is a solution called "Cross Domain Local Storage", it works with a combination of localStorage and postMessage. With that you have a storage you can use with any domain. There are two projects that I know:

But that's not a session storage. To separate multiple tabs, you have to generate a unique id (maybe tab creation date in milliseconds) and save that into the session storage, but only the first time, when there is no value already in the session storage. That way you have one id per tab. That id you can use to put data into the cross domain local storage.

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