Add test for location of redirect to v1

services/web/test/acceptance/coffee/TokenAccessTests.coffee

@@ -421,4 +421,7 @@ describe 'TokenAccess', ->
 			unimportedV1Token = '123abc'
 			try_read_and_write_token_access(@owner, unimportedV1Token, (response, body) =>
 				expect(response.statusCode).to.equal 302
+				expect(response.headers.location).to.equal(
+					'http://overleaf.test:5000/123abc'
+				)
 			, done)

services/web/test/acceptance/config/settings.test.coffee

@@ -107,4 +107,4 @@ module.exports =
 		'/proxy/missing/baseUrl': path: '/foo/bar'
 
 	overleaf:
-		host: "http://#{process.env['V1_HOST']}:5000"
+		host: "http://overleaf.test:5000"