diff --git a/website/settings.py b/website/settings.py
index 0e5d94c..4810d58 100644
--- a/website/settings.py
+++ b/website/settings.py
@@ -212,7 +212,10 @@ WAGTAILSEARCH_BACKENDS = {
 
 WAGTAILADMIN_BASE_URL = f"https://{BASE_HOSTNAME}"
 
-CORS_ALLOWED_ORIGINS = [WAGTAILADMIN_BASE_URL]
+CORS_ALLOWED_ORIGINS = [
+    WAGTAILADMIN_BASE_URL,
+    "https://editor.swagger.io"
+]
 
 WAGTAIL_ENABLE_UPDATE_CHECK = False