From b844e85003317e4bdf3b65e7eb54b70c976d63e4 Mon Sep 17 00:00:00 2001
From: Mark Pinero <markspinero@gmail.com>
Date: Tue, 7 Jun 2022 17:23:08 -0700
Subject: [PATCH] fix: check if window exists before adding to window

---
 src/index.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/index.js b/src/index.js
index 191ed7d..124014b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -15,5 +15,7 @@ const stores = {
   memory: memory(),
 }
 
-window.Study = Study
+if (typeof window !== undefined) {
+  window.Study = Study
+}
 Study.stores = stores