Fixes electron/electron#12147 (#12193)

lib/browser/api/navigation-controller.js

@@ -21,11 +21,6 @@ var NavigationController = (function () {
     this.webContents = webContents
     this.clearHistory()
 
-    // webContents may have already navigated to a page.
-    if (this.webContents._getURL()) {
-      this.currentIndex++
-      this.history.push(this.webContents._getURL())
-    }
     this.webContents.on('navigation-entry-commited', (event, url, inPage, replaceEntry) => {
       if (this.inPageIndex > -1 && !inPage) {
         // Navigated to a new page, clear in-page mark.
@@ -106,6 +101,12 @@ var NavigationController = (function () {
     this.currentIndex = -1
     this.pendingIndex = -1
     this.inPageIndex = -1
+
+    // webContents may have already navigated to a page.
+    if (this.webContents._getURL()) {
+      this.currentIndex++
+      this.history.push(this.webContents._getURL())
+    }
   }
 
   NavigationController.prototype.goBack = function () {