Logout all open tabs automatically when user logs out in one of them

Question

I have created Login page, based on localStorage. On loading the page I have checked the value of localStorage. If I opened the web page in more than one tab and then I logo

Answer 1

This can also be done with an HTTP header if you are able to set one either in Apache or from a server-side script like PHP:

Clear-Site-Data: "cookies", "storage", "executionContexts"

E.g. in PHP:

header('Clear-Site-Data: "cookies", "storage", "executionContexts"');

The key thing to note here is the "executionContexts" directive. From the doc:

"executionContexts"

Indicates that the server wishes to reload all browsing contexts for the origin of the response (Location.reload).

The compatibility in certain browsers (ahem..IE/Edge) is unknown at this time but there is support for this header in most good browsers.