Scope of sessionStorage and localStorage

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Session Storage:

  1. Values persist only as long as the window or tab in which they stored.

  2. Values are only visible within the window or tab that created them.

Local Storage:

  1. Values persist window and browser lifetimes.

  2. Values are shared across every window or tab running at the same origin.

So, by reading and understanding this each key-value pair is unique for each domain, because local storage persist values across window or tab.

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