removing cors fails.
refactoring ping as a proposal for rest endpoints locations
Reviewed-on: PGL/Clyde#42
Reviewed-by: Maxime <231026@umons.ac.be>
Co-authored-by: Anthony Debucquoy <debucquoy.anthony@gmail.com>
Co-committed-by: Anthony Debucquoy <debucquoy.anthony@gmail.com>