Vibe codingMediumvc-g020

Subject Ai code reviewLevel Mid–Senior~16 minCommon in Security interviewsIndustries Software development

Question

An AI assistant set up CORS for a Node API that serves authenticated user data via cookies. The frontend stopped getting CORS errors, so it 'works.' Review the config before it ships.

javascript

1const cors = require("cors");2 3app.use(cors({4  origin: (origin, callback) => callback(null, true),5  credentials: true,6  methods: ["GET", "POST", "PUT", "DELETE"],7}));

What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it — tests, edge cases, reading critically — and how you’d re-prompt or decompose to get it right.

Learn the concepts

Describe your solution

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.