Tough cookie requirement for cookie jar

[nathanhleung]

For a basic implementation of cookies, it doesn't seem as if tough-cookie is necessary. My authentication is still preserved if I create a new request in the callback of a post request in which I authenticate. To activate cookies, all I had to do was write request = require('request').defaults({jar: true}).

The README.md mentions that tough-cookie is required, so if an update to request rendered it obsolete or something it would be helpful if the README was updated too.

Was request updated? Or am I implementing request in a non-traditional way?

[LoicMahieu]

I merged PR #884 but it was a mistake. tough-cookie is builtin and required by request for a while. There is no need for user to install it manually. So I revert the PR in #1750. Sorry for confusion.