diff --git a/app/server/util.js b/app/server/util.js
index 3b929c2c..f6fbc9cf 100644
--- a/app/server/util.js
+++ b/app/server/util.js
@@ -1,44 +1,43 @@
-'use strict'
 /* jshint esversion: 6, asi: true, node: true */
 // util.js
 
 // private
-require('colors') // allow for color property extensions in log messages
-var debug = require('debug')('WebSSH2')
-var Auth = require('basic-auth')
+require('colors'); // allow for color property extensions in log messages
+const debug = require('debug')('WebSSH2');
+const Auth = require('basic-auth');
 
-const defaultCredentials = { username: null, password: null, privatekey: null }
+const defaultCredentials = { username: null, password: null, privatekey: null };
 
-exports.setDefaultCredentials = function (username, password, privatekey) {
-  defaultCredentials.username = username
-  defaultCredentials.password = password
-  defaultCredentials.privatekey = privatekey
-}
+exports.setDefaultCredentials = function setDefaultCredentials(username, password, privatekey) {
+  defaultCredentials.username = username;
+  defaultCredentials.password = password;
+  defaultCredentials.privatekey = privatekey;
+};
 
-exports.basicAuth = function basicAuth (req, res, next) {
-  var myAuth = Auth(req)
+exports.basicAuth = function basicAuth(req, res, next) {
+  const myAuth = Auth(req);
   if (myAuth && myAuth.pass !== '') {
-    req.session.username = myAuth.name
-    req.session.userpassword = myAuth.pass
-    debug('myAuth.name: ' + myAuth.name.yellow.bold.underline +
-      ' and password ' + ((myAuth.pass) ? 'exists'.yellow.bold.underline
-      : 'is blank'.underline.red.bold))
+    req.session.username = myAuth.name;
+    req.session.userpassword = myAuth.pass;
+    debug(`myAuth.name: ${myAuth.name.yellow.bold.underline
+    } and password ${(myAuth.pass) ? 'exists'.yellow.bold.underline
+      : 'is blank'.underline.red.bold}`);
   } else {
-    req.session.username = defaultCredentials.username
-    req.session.userpassword = defaultCredentials.password
-    req.session.privatekey = defaultCredentials.privatekey
+    req.session.username = defaultCredentials.username;
+    req.session.userpassword = defaultCredentials.password;
+    req.session.privatekey = defaultCredentials.privatekey;
   }
   if ((!req.session.userpassword) && (!req.session.privatekey)) {
-    res.statusCode = 401
-    debug('basicAuth credential request (401)')
-    res.setHeader('WWW-Authenticate', 'Basic realm="WebSSH"')
-    res.end('Username and password required for web SSH service.')
-    return
+    res.statusCode = 401;
+    debug('basicAuth credential request (401)');
+    res.setHeader('WWW-Authenticate', 'Basic realm="WebSSH"');
+    res.end('Username and password required for web SSH service.');
+    return;
   }
-  next()
-}
+  next();
+};
 
 // takes a string, makes it boolean (true if the string is true, false otherwise)
-exports.parseBool = function parseBool (str) {
-  return (str.toLowerCase() === 'true')
-}
+exports.parseBool = function parseBool(str) {
+  return (str.toLowerCase() === 'true');
+};