fix(middleware/cors): Vary header handling non-cors OPTIONS requests

gofiber · Mar 26, 2024 · 2770faa · 2770faa
1 parent e574c0d
commit 2770faa
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/middleware/cors/cors.go b/middleware/cors/cors.go
@@ -175,6 +175,8 @@ func New(config ...Config) fiber.Handler {
 
 		// If it's a preflight request and doesn't have Access-Control-Request-Method header, it's outside the scope of CORS
 		if c.Method() == fiber.MethodOptions && c.Get(fiber.HeaderAccessControlRequestMethod) == "" {
+			// See comment in preflight section below
+			c.Vary(fiber.HeaderOrigin)
 			return c.Next()
 		}