diff --git a/config/presets/middleware.json b/config/presets/middleware.json
index 3f77595fc..e4978027b 100644
--- a/config/presets/middleware.json
+++ b/config/presets/middleware.json
@@ -15,6 +15,9 @@
             "PUT",
             "PATCH",
             "DELETE"
+          ],
+          "CorsHandler:_options_exposedHeaders": [
+            "Updates-Via"
           ]
         },
         {
diff --git a/test/integration/WebSocketsProtocol.test.ts b/test/integration/WebSocketsProtocol.test.ts
index 80184eb81..a976aca4f 100644
--- a/test/integration/WebSocketsProtocol.test.ts
+++ b/test/integration/WebSocketsProtocol.test.ts
@@ -36,6 +36,12 @@ describe('A server with the Solid WebSockets API', (): void => {
     expect(response.headers.get('Updates-Via')).toBe(`ws://localhost:${port}`);
   });
 
+  it('exposes the Updates-Via header via CORS.', async(): Promise<void> => {
+    const response = await fetch(baseUrl);
+    expect(response.headers.get('Access-Control-Expose-Headers')!.split(','))
+      .toContain('Updates-Via');
+  });
+
   describe('when a WebSocket client connects', (): void => {
     let client: WebSocket;
     const messages = new Array<string>();