diff --git a/chrome/browser/ui/web_modal/browser_window_modal_dialog_delegate.cc b/chrome/browser/ui/web_modal/browser_window_modal_dialog_delegate.cc
index 946bd193083da..0146e7e7789c3 100644
--- a/chrome/browser/ui/web_modal/browser_window_modal_dialog_delegate.cc
+++ b/chrome/browser/ui/web_modal/browser_window_modal_dialog_delegate.cc
@@ -72,7 +72,11 @@ void BrowserWindowModalDialogDelegate::SetWebContentsBlocked(
       if (content_settings->GetContentSetting(
               url, url, ContentSettingsType::AUTOMATIC_FULLSCREEN) !=
           CONTENT_SETTING_ALLOW) {
+        LOG(ERROR) << "[POC] SetWebContentsBlocked: ExitFullscreen(true) "
+                      "(on Windows this may pump the message loop and "
+                      "destroy the WebContents)";
         web_contents->ExitFullscreen(true);
+        LOG(ERROR) << "[POC] SetWebContentsBlocked: ExitFullscreen returned";
       }
     }
   }
diff --git a/content/browser/digital_credentials/digital_identity_request_impl.cc b/content/browser/digital_credentials/digital_identity_request_impl.cc
index f10b4304c79cf..f31b57454adeb 100644
--- a/content/browser/digital_credentials/digital_identity_request_impl.cc
+++ b/content/browser/digital_credentials/digital_identity_request_impl.cc
@@ -431,7 +431,9 @@ DigitalIdentityRequestImpl::DigitalIdentityRequestImpl(
     mojo::PendingReceiver<blink::mojom::DigitalIdentityRequest> receiver)
     : DocumentService(host, std::move(receiver)) {}
 
-DigitalIdentityRequestImpl::~DigitalIdentityRequestImpl() = default;
+DigitalIdentityRequestImpl::~DigitalIdentityRequestImpl() {
+  LOG(ERROR) << "[POC] ~DigitalIdentityRequestImpl this=" << this;
+}
 
 std::optional<VirtualWallet::Behavior>
 DigitalIdentityRequestImpl::GetVirtualWalletBehavior() {
@@ -648,6 +650,8 @@ void DigitalIdentityRequestImpl::Get(
     return;
   }
 
+  LOG(ERROR) << "[POC] DigitalIdentityRequestImpl::Get this=" << this
+             << " calling ShowDigitalIdentityInterstitial";
   update_interstitial_on_abort_callback_ =
       provider_->ShowDigitalIdentityInterstitial(
           *WebContents::FromRenderFrameHost(&render_frame_host()), origin(),
@@ -655,6 +659,9 @@ void DigitalIdentityRequestImpl::Get(
           base::BindOnce(&DigitalIdentityRequestImpl::OnInterstitialDone,
                          weak_ptr_factory_.GetWeakPtr(),
                          std::move(request_to_send)));
+  LOG(ERROR) << "[POC] DigitalIdentityRequestImpl::Get this=" << this
+             << " assigned update_interstitial_on_abort_callback_ "
+                "(UAF write-site if `this` freed during call)";
 }
 
 void DigitalIdentityRequestImpl::Create(