pass options to authenticate

[joh-klein]

For a less than standard OAuth implementation, I needed an additional GET param added to the authorization url. After some pocking around, I found, that simply adding an options object to the passport.authenticate('oauth2', {options}) call, would be enough. But you don't pass them through to the oauth2 module. If I changed this return {}; to return options; it would work. Do you consider this a good idea?

[joh-klein]

Not quite sure why I won't get an answer here. Should I just open a pull request?

[ericschaal]

hi @joh-klein, I think you just need to extend OAuth2Strategy class and override OAuth2Strategy.prototype.authorizationParams