From 5131a9e683ee43f674c02dc771ee71847ad19a3e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonatan=20K=C5=82osko?= <jonatanklosko@gmail.com>
Date: Mon, 18 Oct 2021 18:07:18 +0200
Subject: [PATCH] Enable CORS for health check (#600)

---
 lib/livebook_web/controllers/health_controller.ex | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/livebook_web/controllers/health_controller.ex b/lib/livebook_web/controllers/health_controller.ex
index a6efdfa07..7a3813f2c 100644
--- a/lib/livebook_web/controllers/health_controller.ex
+++ b/lib/livebook_web/controllers/health_controller.ex
@@ -4,7 +4,9 @@ defmodule LivebookWeb.HealthController do
   def index(conn, _params) do
     version = Application.spec(:livebook, :vsn) |> List.to_string()
 
-    json(conn, %{
+    conn
+    |> put_resp_header("Access-Control-Allow-Origin", "*")
+    |> json(%{
       "application" => "livebook",
       "version" => version
     })