当我尝试在Vercel Deployment上向我的Edge Function POST某些内容时，我收到以下错误：
[POST] /API/openai reason=EDGE_FUNCTION_INVOCATION_FAILED，status=500，user_error=true
TypeError：在app/API/openai/route.ts非法调用：12：36
我的边函数文件：

import { OpenAIStream, OpenAIStreamPayload } from "@/utils/OpenAIStream";

if (!process.env.OPENAI_API_KEY) {
  throw new Error("Missing env var from OpenAI");
}

export const config = {
  runtime: "edge",
};

export async function POST(request: Request) {
  const { prompt } = (await request.json()) as {
    prompt?: string;
  };

  if (!prompt) {
    return new Response("No prompt in the request", { status: 400 });
  }

  //OpenAI logic....
  return new Response();
}