From f3eaceb67ecb79f0c9641c951ec7439852f8446a Mon Sep 17 00:00:00 2001
From: Yamato Matsuoka <yamaton@gmail.com>
Date: Wed, 8 Nov 2023 20:27:31 -0500
Subject: [PATCH] Resolve 'Show Logs' issue by adding _xsrf token in JupyterHub
 4

---
 tljh_repo2docker/static/js/images.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tljh_repo2docker/static/js/images.js b/tljh_repo2docker/static/js/images.js
index 9d0aeb0..ee186db 100644
--- a/tljh_repo2docker/static/js/images.js
+++ b/tljh_repo2docker/static/js/images.js
@@ -128,6 +128,11 @@ require([
       fitAddon.fit();
 
       var logsUrl = utils.url_path_join(base_url, "api", "environments", image, "logs");
+      if (api.xsrf_token) {
+        // add xsrf token to url parameter
+        var sep = logsUrl.indexOf("?") === -1 ? "?" : "&";
+        logsUrl = logsUrl + sep + "_xsrf=" + api.xsrf_token;
+      }
       eventSource = new EventSource(logsUrl);
       eventSource.onerror = function(err) {
         console.error("Failed to construct event stream", err);