diff --git a/homeassistant/components/api/__init__.py b/homeassistant/components/api/__init__.py
index f383f982abc..e7bac8532ee 100644
--- a/homeassistant/components/api/__init__.py
+++ b/homeassistant/components/api/__init__.py
@@ -178,6 +178,7 @@ class APIDiscoveryView(HomeAssistantView):
     requires_auth = False
     url = URL_API_DISCOVERY_INFO
     name = "api:discovery"
+    cors_allowed = True
 
     async def get(self, request):
         """Get discovery information."""