add changeset

Signed-off-by: Juan Pablo Garcia Ripa <sarabadu@gmail.com>

.changeset/rich-deers-run.md

@@ -0,0 +1,16 @@
+---
+'@backstage/backend-common': patch
+---
+
+Add glob patterns support to config CORS options. It's possible to send patterns like:
+
+```yaml
+backend:
+  cors:
+    origin:
+      [
+        https://*.my-domain.com,
+        http://localhost:700?,
+        'https://sub-domain-+([0-9]).my-domain.com',
+      ]
+```

packages/backend-common/src/service/lib/config.test.ts

@@ -69,7 +69,9 @@ describe('config', () => {
     it('reads string array', () => {
       const mockCallback = jest.fn();
       const config = new ConfigReader({
-        cors: { origin: ['https://*.value*', 'http://*.value'] },
+        cors: {
+          origin: ['http?(s)://*.value?(-+([0-9])).com', 'http://*.value'],
+        },
       });
       const cors = readCorsOptions(config);
       expect(cors).toEqual(
@@ -78,8 +80,8 @@ describe('config', () => {
         }),
       );
       const origin = cors?.origin as Function;
-      origin('https://a.value', mockCallback);
-      origin('https://a.valuex', mockCallback);
+      origin('https://a.b.c.value-9.com', mockCallback);
+      origin('http://a.value-999.com', mockCallback);
       origin('http://a.value', mockCallback);
       origin('http://a.valuex', mockCallback);