Multipage session transfer

Hi

my app has a central dash from which multiple single page sub apps are spawned
though the central dash is authenticated using javascript SDK
and i can do the same for sub apps
but is it possible to pass session to the sub apps that are (window.open )from main menu
programmatically

thanks

Just pass the session_id to the new windows using window.postMessage or a global method in each window that picks up the token?

Those sub apps are using the SDK as well to make calls right?

thanks jason that fits in perfectly
yes those subapps are using sdk’s
what i did was used session storage in html5 to get across session_id
as them apps were on the same domain
the hint of using window.postMessage is awesome if i need to use it for cross domain and not of same origin
thankseversomuch
df rocks
cheers