fix self-hosting auth issue with API_URL missing

Author: franciscao633

next.config.ts

@@ -160,7 +160,7 @@ if (isRelativeUrl(apiUrl)) {
   }
 } else if (apiUrl) {
   beforeFilesRewrites.push({
-    source: '/api/:path((?!auth(?:/|$)|config(?:/|$)).*)',
+    source: '/api/:path((?!config(?:/|$)).*)',
     destination: `${apiUrl.replace(/\/+$/, '')}/:path`,
   });
 }

src/lib/api-url.test.ts

@@ -20,13 +20,22 @@ describe('getApiUrl', () => {
     ).toBe('/analytics/internal-api/websites');
   });
 
-  test('keeps app routes on the local api path', () => {
+  test('uses a relative API_URL for auth routes', () => {
     expect(
       getApiUrl('/auth/verify', {
         apiUrl: '/internal-api',
         basePath: '/analytics',
       }),
-    ).toBe('/analytics/api/auth/verify');
+    ).toBe('/analytics/internal-api/auth/verify');
+  });
+
+  test('keeps config routes on the local api path', () => {
+    expect(
+      getApiUrl('/config', {
+        apiUrl: '/internal-api',
+        basePath: '/analytics',
+      }),
+    ).toBe('/analytics/api/config');
   });
 
   test('returns absolute input urls unchanged', () => {

src/lib/api-url.ts

@@ -3,7 +3,7 @@ type ApiUrlOptions = {
   basePath?: string;
 };
 
-const APP_ROUTE_PATTERNS: RegExp[] = [/^\/auth(\/|$)/, /^\/config(\/|$)/];
+const APP_ROUTE_PATTERNS: RegExp[] = [/^\/config(\/|$)/];
 
 function trimTrailingSlash(value: string) {
   return value.replace(/\/+$/, '');