API breaks when passed encoded values instead of actual values. For example:
encodeURIComponent('=')
> "%3D"
encodeURIComponent('&')
> "%26"
This breaks when passing multiple parameters.
%26addresses%3Dmu1izpJmF7CHnbVcH59f1PqfvXnmiBEMq8
&addresses=mu1izpJmF7CHnbVcH59f1PqfvXnmiBEMq8