I'm trying to login into my staging Salesforce lightning, by I get the following result:
INVALID_LOGIN: Invalid username, password, security token; or user locked out.
I use the 'jsForce' library version 2, with the right serverUrl, username and password+token combination.
Note that when I do exactly the same for my production Salesforce environment - I succeed.
Any suggestion to why there's a difference between staging and production.