Auto login links via login.jsp with username and password in query string have stopped working
I have a number of hyperlinks for logging into various orgs that look like:
https://www.salesforce.com/login.jsp?pw={password}&un={username}
When I left work on Friday they were working fine. Today when I tried to use one I was redirected to https://login.salesforce.com rather than being logged in.
Why have these links stopped working?
I think this is still supported if you drop the login.jsp and put the query string after the slash:
https://login.salesforce.com/?un=daniel@example.com&pw=hunter12
Note to other readers wrapping the login process for www salesforce com login in this way, be very particular to use HTTPS!