fix some bugs

utils.mjs

@@ -0,0 +1,9 @@
+import { HttpsProxyAgent } from "https-proxy-agent";
+
+export function getOpenAICommonOptions() {
+  const options = {};
+  if (process.env.PROXY_URL) {
+    options.httpAgent = new HttpsProxyAgent(process.env.PROXY_URL);
+  }
+  return options;
+}