diff --git a/package.json b/package.json
index 3e7ab17..0c9cecc 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,8 @@
 		"test:chrome": "karma start --chrome",
 		"lint": "eslint src",
 		"jsdoc": "rm -rf ./doc && jsdoc -c jsdoc.json",
-		"coverage": "karma start --coverage",
+		"coverage": "npm run simulate:node && karma start --coverage",
+    "simulate:node": "npm run build && node ./dist/persist.js",
 		"release": "node config/release.js",
 		"demo:start": "npm run demo:prebuild-latest && npm run demo:updateVersion && jekyll serve --host=0.0.0.0 -s demo",
 		"demo:build": "npm run demo:updateVersion && jekyll build -s demo",
diff --git a/src/storageManager.js b/src/storageManager.js
index 38293dd..09950dc 100644
--- a/src/storageManager.js
+++ b/src/storageManager.js
@@ -31,7 +31,7 @@ const storage = (function() {
 	} else if (isStorageAvailable(localStorage)) {
 		strg = localStorage;
 		storageType = "LocalStorage";
-	} else if (history.state) {
+	} else if (history && history.state) {
 		storageType = "History";
 	}