Callback URL only uses http

[bobber205]

Not 100% sure this is a issue specific to this project exactly but I am opening a PR to reference to if I submit a change to the README.md file.

/**
 * Starts Twitter sign-in process for adding a user subscription
 **/
app.get('/subscriptions/add', passport.authenticate('twitter', {
  callbackURL: '/callbacks/addsub'
}));

/**
 * Starts Twitter sign-in process for removing a user subscription
 **/
app.get('/subscriptions/remove', passport.authenticate('twitter', {
  callbackURL: '/callbacks/removesub'
}));

I deployed a forked unchanged version of this project pretty easily to heroku.
For argument's sake the url is https://webhook-manager.herokuapp.com

For some reason the callback url submitted in the code above doesn't specify https. So you have to add http://webhook-manager.herokuapp.com/callbacks/addsub (http) to your callback url set for everything to work (same with /removesub)

I'm happy to add this to the README.md unless I am missing something?

[andypiper]

Hey, @bobber205 - long time no chat!

Thanks for this - I think I have this covered in my local version, which I'm long overdue for pushing back to GH. I believe this is correct, you should add both the http and https URLs at the moment.

If I can, I'll try to get my local changes committed over the next week. Moving this up my list for attention.

[bobber205]

@andypiper Good afternoon Andy.
I'm back to working regularly on the Twitter DM platform and this tool as usual proves invaluable.

Hope things are well with you.