diff --git a/config/env/development.js b/config/env/development.js
index fabdcedb..4fe43e1d 100644
--- a/config/env/development.js
+++ b/config/env/development.js
@@ -8,27 +8,27 @@ module.exports = {
 	facebook: {
 		clientID: process.env.FACEBOOK_ID || 'APP_ID',
 		clientSecret: process.env.FACEBOOK_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/facebook/callback'
+		callbackURL: '/auth/facebook/callback'
 	},
 	twitter: {
 		clientID: process.env.TWITTER_KEY || 'CONSUMER_KEY',
 		clientSecret: process.env.TWITTER_SECRET || 'CONSUMER_SECRET',
-		callbackURL: 'http://localhost:3000/auth/twitter/callback'
+		callbackURL: '/auth/twitter/callback'
 	},
 	google: {
 		clientID: process.env.GOOGLE_ID || 'APP_ID',
 		clientSecret: process.env.GOOGLE_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/google/callback'
+		callbackURL: '/auth/google/callback'
 	},
 	linkedin: {
 		clientID: process.env.LINKEDIN_ID || 'APP_ID',
 		clientSecret: process.env.LINKEDIN_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/linkedin/callback'
+		callbackURL: '/auth/linkedin/callback'
 	},
 	github: {
 		clientID: process.env.GITHUB_ID || 'APP_ID',
 		clientSecret: process.env.GITHUB_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/github/callback'
+		callbackURL: '/auth/github/callback'
 	},
 	mailer: {
 		from: process.env.MAILER_FROM || 'MAILER_FROM',
diff --git a/config/env/production.js b/config/env/production.js
index 78d2e5e8..92882f96 100644
--- a/config/env/production.js
+++ b/config/env/production.js
@@ -23,27 +23,27 @@ module.exports = {
 	facebook: {
 		clientID: process.env.FACEBOOK_ID || 'APP_ID',
 		clientSecret: process.env.FACEBOOK_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/facebook/callback'
+		callbackURL: '/auth/facebook/callback'
 	},
 	twitter: {
 		clientID: process.env.TWITTER_KEY || 'CONSUMER_KEY',
 		clientSecret: process.env.TWITTER_SECRET || 'CONSUMER_SECRET',
-		callbackURL: 'http://localhost:3000/auth/twitter/callback'
+		callbackURL: '/auth/twitter/callback'
 	},
 	google: {
 		clientID: process.env.GOOGLE_ID || 'APP_ID',
 		clientSecret: process.env.GOOGLE_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/google/callback'
+		callbackURL: '/auth/google/callback'
 	},
 	linkedin: {
 		clientID: process.env.LINKEDIN_ID || 'APP_ID',
 		clientSecret: process.env.LINKEDIN_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/linkedin/callback'
+		callbackURL: '/auth/linkedin/callback'
 	},
 	github: {
 		clientID: process.env.GITHUB_ID || 'APP_ID',
 		clientSecret: process.env.GITHUB_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/github/callback'
+		callbackURL: '/auth/github/callback'
 	},
 	mailer: {
 		from: process.env.MAILER_FROM || 'MAILER_FROM',
diff --git a/config/env/test.js b/config/env/test.js
index 595fbb64..cec8b580 100644
--- a/config/env/test.js
+++ b/config/env/test.js
@@ -9,27 +9,27 @@ module.exports = {
 	facebook: {
 		clientID: process.env.FACEBOOK_ID || 'APP_ID',
 		clientSecret: process.env.FACEBOOK_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/facebook/callback'
+		callbackURL: '/auth/facebook/callback'
 	},
 	twitter: {
 		clientID: process.env.TWITTER_KEY || 'CONSUMER_KEY',
 		clientSecret: process.env.TWITTER_SECRET || 'CONSUMER_SECRET',
-		callbackURL: 'http://localhost:3000/auth/twitter/callback'
+		callbackURL: '/auth/twitter/callback'
 	},
 	google: {
 		clientID: process.env.GOOGLE_ID || 'APP_ID',
 		clientSecret: process.env.GOOGLE_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/google/callback'
+		callbackURL: '/auth/google/callback'
 	},
 	linkedin: {
 		clientID: process.env.LINKEDIN_ID || 'APP_ID',
 		clientSecret: process.env.LINKEDIN_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/linkedin/callback'
+		callbackURL: '/auth/linkedin/callback'
 	},
 	github: {
 		clientID: process.env.GITHUB_ID || 'APP_ID',
 		clientSecret: process.env.GITHUB_SECRET || 'APP_SECRET',
-		callbackURL: 'http://localhost:3000/auth/github/callback'
+		callbackURL: '/auth/github/callback'
 	},
 	mailer: {
 		from: process.env.MAILER_FROM || 'MAILER_FROM',