From f909bc3cf11a685c3fcec93cdbdd66e1bd0132d7 Mon Sep 17 00:00:00 2001
From: Jeremy Tuloup <jeremy.tuloup@gmail.com>
Date: Sun, 15 Dec 2019 13:50:02 +0100
Subject: [PATCH] Close output views on notebook closed

---
 packages/notebook-extension/src/index.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/notebook-extension/src/index.ts b/packages/notebook-extension/src/index.ts
index 542991559be1..f92810219a49 100644
--- a/packages/notebook-extension/src/index.ts
+++ b/packages/notebook-extension/src/index.ts
@@ -1668,8 +1668,9 @@ function addCommands(
       const updateCloned = () => {
         void clonedOutputs.save(widget);
       };
+
       current.context.pathChanged.connect(updateCloned);
-      current.content.model.cells.changed.connect(updateCloned);
+      current.context.model.cells.changed.connect(updateCloned);
 
       // Add the cloned output to the output widget tracker.
       void clonedOutputs.add(widget);
@@ -1677,7 +1678,7 @@ function addCommands(
       // Remove the output view if the parent notebook is closed.
       current.content.disposed.connect(() => {
         current.context.pathChanged.disconnect(updateCloned);
-        current.content.model.cells.changed.disconnect(updateCloned);
+        current.context.model.cells.changed.disconnect(updateCloned);
         widget.dispose();
       });
     },