From deba6553f58683d950749bd58b987925f6848e3f Mon Sep 17 00:00:00 2001
From: Ryohei Ikegami <iofg2100@gmail.com>
Date: Thu, 23 Mar 2017 22:43:06 +0900
Subject: [PATCH] Better preventDefault for
 ELECTRON_GUEST_WINDOW_MANAGER_INTERNAL_WINDOW_OPEN

---
 lib/browser/guest-window-manager.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/browser/guest-window-manager.js b/lib/browser/guest-window-manager.js
index a9c9e20a36f7..7649547f9428 100644
--- a/lib/browser/guest-window-manager.js
+++ b/lib/browser/guest-window-manager.js
@@ -242,11 +242,14 @@ ipcMain.on('ELECTRON_GUEST_WINDOW_MANAGER_INTERNAL_WINDOW_OPEN', function (event
                                                                   disposition, options,
                                                                   additionalFeatures, postData) {
   options = mergeBrowserWindowOptions(event.sender, options)
+  const {webContents} = options
   event.sender.emit('new-window', event, url, frameName, disposition, options, additionalFeatures)
   const newGuest = event.newGuest
   if ((event.sender.isGuest() && !event.sender.allowPopups) || event.defaultPrevented) {
     if (newGuest !== undefined && newGuest !== null) {
-      event.defaultPrevented = false
+      if (webContents == newGuest.webContents) {
+        event.defaultPrevented = false
+      }
       event.returnValue = setupGuest(event.sender, frameName, newGuest, options)
     } else {
       event.returnValue = null