fix bug on windows

Author: PalmerAL

main/main.js

@@ -30,7 +30,7 @@ function sendIPCToWindow (window, action, data) {
 
 function createWindow (cb) {
   var savedBounds = fs.readFile(appDataPath + 'windowBounds.json', 'utf-8', function (e, data) {
-    if (e) { // there was an error, probably because the file doesn't exist
+    if (e || !data) { // there was an error, probably because the file doesn't exist
       var size = electron.screen.getPrimaryDisplay().workAreaSize
       var bounds = {
         x: 0,
@@ -177,7 +177,7 @@ app.on('open-url', function (e, url) {
  *
  * Opens a new tab when all tabs are closed, and min is still open by clicking on the application dock icon
  */
-app.on('activate', function (/* e, hasVisibleWindows */) {
+app.on('activate', function ( /* e, hasVisibleWindows */) {
   if (!mainWindow && appIsReady) { // sometimes, the event will be triggered before the app is ready, and creating new windows will fail
     createWindow()
   }