1 files changed, 6 insertions, 0 deletions
diff --git a/chromium/extensions/browser/guest_view/app_view/app_view_guest.cc b/chromium/extensions/browser/guest_view/app_view/app_view_guest.cc
index c4231b943fd..f5b0c34d0ae 100644
--- a/chromium/extensions/browser/guest_view/app_view/app_view_guest.cc
+++ b/chromium/extensions/browser/guest_view/app_view/app_view_guest.cc
@@ -246,6 +246,12 @@ void AppViewGuest::CompleteCreateWebContents(
     const Extension* guest_extension,
     std::unique_ptr<GuestViewBase> owned_this,
     WebContentsCreatedCallback callback) {
+  if (!owner_web_contents()) {
+    // The owner was destroyed before getting a response to the embedding
+    // request, so we can't proceed with creating a guest.
+    std::move(callback).Run(std::move(owned_this), nullptr);
+    return;
+  }
   if (!url.is_valid()) {
     std::move(callback).Run(std::move(owned_this), nullptr);
     return;