How do I set up CORS in an Express.js application?
An example of an AI chatbot conversation about setting up CORS in Express.js applications.
How do I set up CORS in an Express.js application?
To set up CORS in an Express.js application, you can use the 'cors' middleware. First, install it using npm: npm install cors.
What do I do after installing the cors package?
After installing, require it in your app and use it as middleware. For example: const cors = require('cors'); app.use(cors());.
Can I configure CORS to allow only specific origins?
Yes, you can configure it by passing an options object. For example: app.use(cors({ origin: 'http://example.com' }));.
What if I want to allow multiple origins?
You can use a function to dynamically check the origin. For example: app.use(cors({ origin: ['http://example.com', 'http://another.com'] }));.
Use ChatGPT in Telegram
Get this answer and more from ChatGPT in Telegram, try it for free!
Get Started For FreeWhat can MagicBuddy do?
The Friendly AI in Your Pocket
Powered by advanced language models trained on billions of online words and conversations, MagicBuddy delivers friendly and helpful chat on demand.
Ask questions and get answers. Crack jokes and get laughs. Or even get writing ideas and study help. MagicBuddy's conversational intelligence allows for a truly unique and useful chat experience.
Curious? Try these prompts:
Telegram's Best AI-Powered Chatbot
MagicBuddy is incredibly easy to use and the responses are lightning fast! 🥇
Impressive! MagicBuddy is my go-to AI assistant. It’s quick, accurate, and user-friendly.
Sending voice messages makes it easier to use in the middle of the day and the answers are super fast.
Love it! A friend of mine told me about it and it has made my life so much easier. It’s like having a helpful friend in my pocket!
I use 2 months already, simply amazing! MagicBuddy delivers answers in a snap. It’s a must-have tool for staying informed!
Game-changer! MagicBuddy’s speed and accuracy are unmatched. It’s my secret weapon for productivity
Talk to ChatGPT on Telegram
Say Hello to Your New Telegram BFF - Try MagicBuddy Free!
Get Started For Free