diff --git a/packages/wobe-documentation/doc/concepts/route.md b/packages/wobe-documentation/doc/concepts/route.md
index 6e281d5..86bf862 100644
--- a/packages/wobe-documentation/doc/concepts/route.md
+++ b/packages/wobe-documentation/doc/concepts/route.md
@@ -65,3 +65,19 @@ const app = new Wobe()
 	)
 	.listen(3000)
 ```
+
+## Prelight requests
+
+You can enable prelight requests for cors like this :
+
+```ts
+const app = new Wobe().options(
+	'*',
+	(ctx) => ctx.res.send(null),
+	cors({
+		origin: 'http://localhost:3000',
+		allowHeaders: ['content-type'],
+		credentials: true,
+	}),
+)
+```
diff --git a/packages/wobe-documentation/doc/ecosystem/hooks/cors.md b/packages/wobe-documentation/doc/ecosystem/hooks/cors.md
index a5230d7..4eaf298 100644
--- a/packages/wobe-documentation/doc/ecosystem/hooks/cors.md
+++ b/packages/wobe-documentation/doc/ecosystem/hooks/cors.md
@@ -4,7 +4,23 @@ Wobe has a `beforeHandker` hook to manage CORS.
 
 ## Example
 
-You can only authorize some requests with the `origin` option.
+You can only authorize some requests with the `origin` option
+
+First of all you will need to enable prelight requests for cors like this :
+
+```ts
+const app = new Wobe().options(
+	'*',
+	(ctx) => ctx.res.send(null),
+	cors({
+		origin: 'http://localhost:3000',
+		allowHeaders: ['content-type'],
+		credentials: true,
+	}),
+)
+```
+
+than: 
 
 ```ts
 import { Wobe, cors } from 'wobe'