The Stripe API uses url-encoding for requests, and stripe-node encodes a null param as an empty string, because there is no concept of null in url-encoding. Both null and '' behave identically.
null
''
The Stripe API uses url-encoding for requests, and stripe-node encodes a
nullparam as an empty string, because there is no concept ofnullin url-encoding. Bothnulland''behave identically.