Evercookie only storing integer values?

[andreim27]

The candidates var in the _evercookie method is a list. It is used to count the number of times a particular cookie value has been stored. The values being counted are indices into this list, meaning values can only be integers (or strings of integers).
So if I try to store something like this: ec.set("cookie_name", "cookie_value"), when I later retrieve this (with or without a callback function), the return value is undefined.

Am I overlooking something very obvious here?