Hi,
Please note below testing is done on a SharePoint 2013 Site with Forms Authentication and Fedauth as session cookie.
We observed below behavior in IE Mobile browser, currently in IE Mobile Browser a new tab is considered as a new window and any session cookies are not shared across tabs .
Login from Mobile to any portal with session cookies ->Long Press on any anchor link -> Select “Open in new Tab”
-> Page urls opens in new tab and shows its logged out(As fedauth is a session cookie)
But on the other hand the source tab where the site is opened first will still have the active session intact and user can browse normally in that tab, we have tested with other Mobile browsers like Firefox, Chrome and seems to be working as expected without this limitation.
So did any one experience this issue? Or It is a limitation with IE Browser?
-R