Proper error checking for getSession.
Proper error checking for getSession.

TypesetIO/substance,michael/substance-1,jacwright/substance,podviaznikov/substance,stencila/substance,abhaga/substance,jacwright/substance,andene/substance,andene/substance,TypesetIO/substance,podviaznikov/substance,substance/substance,abhaga/substance,substance/substance,michael/substance-1