cookies work accross different subdomains, added translations middlewear into stack to render based on domain

services/web/app/coffee/infrastructure/Server.coffee

@@ -18,7 +18,7 @@ oneDayInMilliseconds = 86400000
 ReferalConnect = require('../Features/Referal/ReferalConnect')
 RedirectManager = require("./RedirectManager")
 OldAssetProxy = require("./OldAssetProxy")
-translations = require "translations-sharelatex"
+translations = require("translations-sharelatex").setup(Settings.subdomainLang)
 
 metrics.mongodb.monitor(Path.resolve(__dirname + "/../../../node_modules/mongojs/node_modules/mongodb"), logger)
 metrics.mongodb.monitor(Path.resolve(__dirname + "/../../../node_modules/mongoose/node_modules/mongodb"), logger)
@@ -51,10 +51,12 @@ app.configure () ->
 	app.use express.bodyParser(uploadDir: Settings.path.uploadFolder)
 	app.use express.bodyParser(uploadDir: __dirname + "/../../../data/uploads")
 	app.use translations.expressMiddlewear
+	app.use translations.setLangBasedOnDomainMiddlewear
 	app.use cookieParser
 	app.use express.session
 		proxy: Settings.behindProxy
 		cookie:
+			domain: Settings.cookieDomain
 			maxAge: cookieSessionLength
 			secure: Settings.secureCookie
 		store: sessionStore
@@ -73,7 +75,6 @@ app.configure () ->
 
 	app.use ReferalConnect.use
 	app.use express.methodOverride()
-	app.use translations.serverStaticFiles
 
 
 expressLocals(app)

services/web/config/settings.defaults.coffee

@@ -107,6 +107,11 @@ module.exports =
 	# that are sent out, generated links, etc.
 	siteUrl : 'http://localhost:3000'
 
+	# cooke domain
+	# use full domain for cookies to only be accesabble from that domain,
+	# replace subdomain with dot to have them accessable on all subdomains
+	# cookieDomain: ".sharelatex.dev"
+
 	# Same, but with http auth credentials.
 	httpAuthSiteUrl: 'http://#{httpAuthUser}:#{httpAuthPass}@localhost:3000'