diff --git a/ui/src/kapacitor/containers/KapacitorRulePage.js b/ui/src/kapacitor/containers/KapacitorRulePage.js
index ccd381ec0..bfcb28ab2 100644
--- a/ui/src/kapacitor/containers/KapacitorRulePage.js
+++ b/ui/src/kapacitor/containers/KapacitorRulePage.js
@@ -76,7 +76,7 @@ export const KapacitorRulePage = React.createClass({
         .catch(() => {
           addFlashMessage({
             type: 'error',
-            text: "We couldn't find a configured Kapacitor for this source",
+            text: 'We couldn\'t find a configured Kapacitor for this source',
           })
         })
     })
diff --git a/ui/src/shared/actions/sources.js b/ui/src/shared/actions/sources.js
index 15adb1abe..eb0841cd5 100644
--- a/ui/src/shared/actions/sources.js
+++ b/ui/src/shared/actions/sources.js
@@ -6,6 +6,8 @@ import {
 } from 'src/shared/apis'
 import {publishNotification} from './notifications'
 
+import {HTTP_NOT_FOUND} from 'src/shared/constants'
+
 export const loadSources = sources => ({
   type: 'LOAD_SOURCES',
   payload: {
@@ -51,7 +53,7 @@ export const removeAndLoadSources = source => async dispatch => {
     } catch (err) {
       // A 404 means that either a concurrent write occurred or the source
       // passed to this action creator doesn't exist (or is undefined)
-      if (err.status !== 404) {
+      if (err.status !== HTTP_NOT_FOUND) {
         // eslint-disable-line no-magic-numbers
         throw err
       }
diff --git a/ui/src/shared/constants/index.js b/ui/src/shared/constants/index.js
index a10ed2493..f7867058b 100644
--- a/ui/src/shared/constants/index.js
+++ b/ui/src/shared/constants/index.js
@@ -390,6 +390,7 @@ export const REVERT_STATE_DELAY = 1500 // ms
 
 export const HTTP_UNAUTHORIZED = 401
 export const HTTP_FORBIDDEN = 403
+export const HTTP_NOT_FOUND = 404
 
 export const AUTOREFRESH_DEFAULT = 15000 // in milliseconds
 
diff --git a/ui/src/shared/middleware/appStorage.js b/ui/src/shared/middleware/appStorage.js
index 5f8ced083..2df6a306c 100644
--- a/ui/src/shared/middleware/appStorage.js
+++ b/ui/src/shared/middleware/appStorage.js
@@ -2,7 +2,7 @@
 // There are some tradeoffs between using localStorage vs. using on-disk files via electron.
 // localStorage was chosen, for now, to simplify use of this app outside of electron.
 export default function makeAppStorage(localStorage) {
-  return store => {
+  return () => {
     // eslint-disable-line no-unused-vars
     return next => {
       return action => {
diff --git a/ui/src/sources/components/SourceForm.js b/ui/src/sources/components/SourceForm.js
index 8769c6e2c..55caaa8b7 100644
--- a/ui/src/sources/components/SourceForm.js
+++ b/ui/src/sources/components/SourceForm.js
@@ -22,7 +22,7 @@ export const SourceForm = React.createClass({
       name: this.sourceName.value,
       username: this.sourceUsername.value,
       password: this.sourcePassword.value,
-      default: this.sourceDefault.checked,
+      'default': this.sourceDefault.checked,
       telegraf: this.sourceTelegraf.value,
       insecureSkipVerify: this.sourceInsecureSkipVerify
         ? this.sourceInsecureSkipVerify.checked