diff --git a/src/routes/index.js b/src/routes/index.js
index fcab003624..8c1ed9ba24 100644
--- a/src/routes/index.js
+++ b/src/routes/index.js
@@ -149,6 +149,11 @@ function addCoreRoutes(app, router, middleware) {
 	];
 	var staticOptions = {
 		maxAge: app.enabled('cache') ? 5184000000 : 0,
+		setHeaders: (res, filePath) => {
+			if (filePath === path.resolve(nconf.get('upload_path'), '../openapi/read.yaml')) {
+				res.set('Access-Control-Allow-Origin', '*');
+			}
+		},
 	};
 
 	if (path.resolve(__dirname, '../../public/uploads') !== nconf.get('upload_path')) {