Passport-twitter: не удалось найти токен запроса в сеансе

только вчера на Heroku у меня появилась эта ошибка при входе в твиттер в экспрессе

Error: failed to find request token in session
    at Strategy.<anonymous> (/app/node_modules/passport-twitter/node_modules/passport-oauth/lib/passport-oauth/strategies/oauth.js:120:54)
    at Strategy.authenticate (/app/node_modules/passport-twitter/lib/passport-twitter/strategy.js:82:40)
    at Passport.authenticate (/app/node_modules/passport/lib/passport/middleware/authenticate.js:153:14)
    at callbacks (/app/node_modules/express/lib/router/index.js:272:11)
    at param (/app/node_modules/express/lib/router/index.js:246:11)
    at pass (/app/node_modules/express/lib/router/index.js:253:5)
    at Router._dispatch (/app/node_modules/express/lib/router/index.js:280:4)
    at Object.handle (/app/node_modules/express/lib/router/index.js:45:10)
    at Context.next (/app/node_modules/express/node_modules/connect/lib/http.js:204:15)
    at Context.<anonymous> (/app/node_modules/passport/lib/passport/context/http/actions.js:64:8)

есть предложения?