fix tests

packages/create-app/templates/default-app/packages/backend/src/index.ts

@@ -55,7 +55,7 @@ async function main() {
     .addRouter('/auth', await auth(authEnv))
     .addRouter('/identity', await identity(identityEnv))
     .addRouter('/techdocs', await techdocs(techdocsEnv))
-    .addRouter('/proxy', await proxy(proxyEnv));
+    .addRouter('/proxy', await proxy(proxyEnv, '/proxy'));
 
   await service.start().catch(err => {
     console.log(err);

packages/create-app/templates/default-app/packages/backend/src/plugins/proxy.ts

@@ -2,9 +2,9 @@
 import { createRouter } from '@backstage/plugin-proxy-backend';
 import { PluginEnvironment } from '../types';
 
-export default async function createPlugin({
-  logger,
-  config,
-}: PluginEnvironment) {
-  return await createRouter({ logger, config });
+export default async function createPlugin(
+  { logger, config }: PluginEnvironment,
+  pathPrefix: string,
+) {
+  return await createRouter({ logger, config, pathPrefix });
 }