diff --git a/lib/browser/guest-window-manager.js b/lib/browser/guest-window-manager.js
index 88871dc58b..2c869cc651 100644
--- a/lib/browser/guest-window-manager.js
+++ b/lib/browser/guest-window-manager.js
@@ -45,30 +45,7 @@ const mergeBrowserWindowOptions = function (embedder, options) {
 
 // Setup a new guest with |embedder|
 const setupGuest = function (embedder, frameName, guest) {
-  if (!options.webContents || url !== 'about:blank') {
-    // We should not call `loadURL` if the window was constructed from an
-    // existing webContents(window.open in a sandboxed renderer) and if the url
-    // is not 'about:blank'.
-    //
-    // Navigating to the url when creating the window from an existing
-    // webContents would not be necessary(it will navigate there anyway), but
-    // apparently there's a bug that allows the child window to be scripted by
-    // the opener, even when the child window is from another origin.
-    //
-    // That's why the second condition(url !== "about:blank") is required: to
-    // force `OverrideSiteInstanceForNavigation` to be called and consequently
-    // spawn a new renderer if the new window is targeting a different origin.
-    //
-    // If the URL is "about:blank", then it is very likely that the opener just
-    // wants to synchronously script the popup, for example:
-    //
-    //     let popup = window.open()
-    //     popup.document.body.write('<h1>hello</h1>')
-    //
-    // The above code would not work if a navigation to "about:blank" is done
-    // here, since the window would be cleared of all changes in the next tick.
-    guest.loadURL(url)
-  }
+
   // When |embedder| is destroyed we should also destroy attached guest, and if
   // guest is closed by user then we should prevent |embedder| from double
   // closing guest.
@@ -118,7 +95,30 @@ const createGuest = function (embedder, url, frameName, options) {
   }
   options.webPreferences.openerId = embedder.id
   guest = new BrowserWindow(options)
-  guest.loadURL(url)
+  if (!options.webContents || url !== 'about:blank') {
+    // We should not call `loadURL` if the window was constructed from an
+    // existing webContents(window.open in a sandboxed renderer) and if the url
+    // is not 'about:blank'.
+    //
+    // Navigating to the url when creating the window from an existing
+    // webContents would not be necessary(it will navigate there anyway), but
+    // apparently there's a bug that allows the child window to be scripted by
+    // the opener, even when the child window is from another origin.
+    //
+    // That's why the second condition(url !== "about:blank") is required: to
+    // force `OverrideSiteInstanceForNavigation` to be called and consequently
+    // spawn a new renderer if the new window is targeting a different origin.
+    //
+    // If the URL is "about:blank", then it is very likely that the opener just
+    // wants to synchronously script the popup, for example:
+    //
+    //     let popup = window.open()
+    //     popup.document.body.write('<h1>hello</h1>')
+    //
+    // The above code would not work if a navigation to "about:blank" is done
+    // here, since the window would be cleared of all changes in the next tick.
+    guest.loadURL(url)
+  }
 
   return setupGuest(embedder, frameName, guest)
 }