From 47e400bfcfcaaf3081ccd5773a438145c2cd36e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Collonval?= <fcollonval@gmail.com>
Date: Thu, 2 Sep 2021 10:07:50 +0200
Subject: [PATCH] Fix tree path builder

---
 packages/application-extension/src/index.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/application-extension/src/index.ts b/packages/application-extension/src/index.ts
index d2716256b..3e2aa5d43 100644
--- a/packages/application-extension/src/index.ts
+++ b/packages/application-extension/src/index.ts
@@ -556,13 +556,13 @@ const treePathUpdater: JupyterFrontEndPlugin<ITreePathUpdater> = {
       if (treePath !== PageConfig.getOption('treePath')) {
         const path = URLExt.join(
           PageConfig.getOption('baseUrl') || '/',
-          PageConfig.getOption('frontendUrl'),
+          'retro',
           'tree',
-          treePath
+          URLExt.encodeParts(treePath)
         );
         router.navigate(path, { skipRouting: true });
         // Persist the new tree path to PageConfig as it is used elsewhere at runtime.
-        PageConfig.setOption('treePath', URLExt.encodeParts(treePath));
+        PageConfig.setOption('treePath', treePath);
       }
     }
     return updateTreePath;