[refactor] improve data module load function

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "nightTab",
-  "version": "5.4.2",
+  "version": "5.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nightTab",
-  "version": "5.4.2",
+  "version": "5.5.0",
   "description": "A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab.",
   "main": "index.js",
   "scripts": {

src/js/data.js

@@ -235,7 +235,11 @@ var data = (function() {
   };
 
   var load = function() {
-    return JSON.parse(mod.get(_saveName));
+    if (mod.get(_saveName) != null && mod.get(_saveName) != undefined) {
+      return JSON.parse(mod.get(_saveName));
+    } else {
+      return false;
+    };
   };
 
   var wipe = function() {

src/js/version.js

@@ -1,6 +1,6 @@
 var version = (function() {
 
-  var current = "5.4.2";
+  var current = "5.5.0";
 
   var name = "Zonked Tarsier";
 

src/manifest.json

@@ -2,7 +2,7 @@
   "name": "nightTab",
   "short_name": "nightTab",
   "description": "A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab.",
-  "version": "5.4.2",
+  "version": "5.5.0",
   "manifest_version": 2,
   "chrome_url_overrides": {
     "newtab": "index.html"