Update lib/node/agent.js
Update lib/node/agent.js

Handling secure cookies on secure requests #130
geminiyellow/superagent,jarvisaoieong/superagent,andyburke/superagent,reinaldo13/superagent,reinaldo13/superagent,thejameskyle/superagent,classdojo/superagent,stanzi83/superagent,mvanlonden/superagent-webpack-client,brainbytes/superagent,stasha/superagent,killerlayup/superagent,puterakahfi/superagent,brotchie/superagent,fredigato/superagent,nemisj/superagent,aaroncrows/superagent,zsh2938/superagent,KingMario/superagent,yeatszhang/superagent,wushuyi/superagent,jarvisaoieong/superagent,yeatszhang/superagent,stasha/superagent,h1bomb/superagent,brotchie/superagent,bevacqua/superagent,deltreey/superagent,ertrzyiks/superagent,killerlayup/superagent,KuroGuo/suberagent,ertrzyiks/superagent,geminiyellow/superagent,RubenVerborgh/superagent,noikiy/suberagent,sutoiku/superagent,puterakahfi/superagent,KingMario/superagent,andyburke/superagent,aaroncrows/superagent,eligolding/superagent,kmalakoff/superagent-ls,ccapndave/superagent,philipshurpik/superagent,kmalakoff/superagent-ls,eligolding/superagent,KuroGuo/suberagent,RubenVerborgh/superagent,focusaurus/superagent,focusaurus/superagent,thejameskyle/superagent,soyuka/superagent,soyuka/superagent,philipshurpik/superagent,modulexcite/superagent,stanzi83/superagent,yussan/superagent,yussan/superagent,targos/superagent,brainbytes/superagent,visionmedia/superagent,sutoiku/superagent,drinks/superagent,noikiy/suberagent,deltreey/superagent,targos/superagent,classdojo/superagent,sebastianvera/superagent,wushuyi/superagent,modulexcite/superagent,h1bomb/superagent,fredigato/superagent,simonvizzini/superagent,alinz/superagent,mvanlonden/superagent-webpack-client,zsh2938/superagent,craigspaeth/superagent,drinks/superagent,simonvizzini/superagent,craigspaeth/superagent,ccapndave/superagent,alinz/superagent,visionmedia/superagent,sebastianvera/superagent,visionmedia/superagent,nemisj/superagent