diff --git a/Common/sources/storage-s3.js b/Common/sources/storage-s3.js
index 2c306e83..af445830 100644
--- a/Common/sources/storage-s3.js
+++ b/Common/sources/storage-s3.js
@@ -31,13 +31,17 @@
  */
 
 'use strict';
+var fs = require('fs');
 var url = require('url');
 var path = require('path');
 var AWS = require('aws-sdk');
 var mime = require('mime');
 var s3urlSigner = require('amazon-s3-url-signer');
 var utils = require('./utils');
+const ms = require('ms');
+const commonDefines = require('./../../Common/sources/commondefines');
 
+var config = require('config');
 var configStorage = require('config').get('storage');
 var cfgRegion = configStorage.get('region');
 var cfgEndpoint = configStorage.get('endpoint');
@@ -48,6 +52,10 @@ var cfgSecretAccessKey = configStorage.get('secretAccessKey');
 var cfgUseRequestToGetUrl = configStorage.get('useRequestToGetUrl');
 var cfgUseSignedUrl = configStorage.get('useSignedUrl');
 var cfgExternalHost = configStorage.get('externalHost');
+var configFs = configStorage.get('fs');
+var cfgStorageUrlExpires = configFs.get('urlExpires');
+const cfgExpSessionAbsolute = ms(config.get('services.CoAuthoring.expire.sessionabsolute'));
+
 /**
  * Don't hard-code your credentials!
  * Export the following environment variables instead: