diff --git a/content/apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps.md b/content/apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps.md
index 4662f784577a..03f330726fa8 100644
--- a/content/apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps.md
+++ b/content/apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps.md
@@ -63,7 +63,7 @@ Parameter name | Type | Description
 `state` | `string` | {% data reusables.apps.state_description %}
 `allow_signup`|`string` | Whether or not unauthenticated users will be offered an option to sign up for GitHub during the OAuth flow. The default is `true`. Use `false` when a policy prohibits signups.
 
-The PKCE (Proof Key for Code Exchange) parameters `code_challenge` and `code_challenge_method` are not supported at this time.
+The PKCE (Proof Key for Code Exchange) parameters `code_challenge` and `code_challenge_method` are not supported at this time. CORS pre-flight requests (OPTIONS) are not supported at this time.
 
 ### 2. Users are redirected back to your site by GitHub