fixed blank index file bug

ass.js

@@ -70,7 +70,7 @@ useSsl && app.use(helmet.hsts({ preload: true })); // skipcq: JS-0093
 app.use(nofavicon);
 
 // Use custom index, otherwise render README.md
-const ASS_INDEX = fs.existsSync(`./${indexFile}/`) && require(`./${indexFile}`);
+const ASS_INDEX = indexFile !== '' && fs.existsSync(`./${indexFile}/`) && require(`./${indexFile}`);
 app.get('/', (req, res, next) => ASS_INDEX // skipcq: JS-0229
 	? ASS_INDEX(req, res, next)
 	: fs.readFile(path('README.md'))

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "ass",
-  "version": "0.8.4",
+  "version": "0.8.5",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "ass",
-      "version": "0.8.4",
+      "version": "0.8.5",
       "license": "ISC",
       "dependencies": {
         "@tycrek/ass-storage-engine": "^0.2.7",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ass",
-  "version": "0.8.4",
+  "version": "0.8.5",
   "description": "The superior self-hosted ShareX server",
   "main": "ass.js",
   "engines": {