Error in regular expression to find the csrf_token

[Dukebot]

I used this module for a while and everything worked perfect but recently I started to get error when attempting to find the csrf_token in the _login() function.

I started to debug the issue and found that the regular expression used to find the csrf_token was:

var pattern = new RegExp(/(csrf_token\\":\\")[\w]+/);

But this is not matching the token anymore for no apparent reason.

I tried to tweak the regular expression and found that if I use one slash \ instead of \\ it's works and match the token:

var pattern = new RegExp(/(csrf_token\":\")[\w]+/);

I don't know if this problem only happens to me or not, and I don't understand why this started to happen all of a sudden.

Maybe the code could be updated for trying to match with \ and \\ slashed if the first one don't find the token.