[▲ Vercel Community](/) · [Categories](/categories) · [Latest](/latest) · [Top](/top) · [Live](/live) [Help](/c/help/9) # Express.js deployment on vercel bug -fixed 94 views · 1 like · 2 posts Ebrahim Ramadan (@ebrahim-ramadan) · 2024-08-12 I am deploying a very [simple one-endpoint Express api](https://github.com/Ebrahim-Ramadan/rivo-email-management) on vercel according to [the rules here](https://vercel.com/guides/using-express-with-vercel), configured my vercel.json and eveything works just fine in dev too. the only problem is having this annoying 'authenticating page' as response from postman to the build URL  this is the same response I get when visiting the URL first time in the browser, like this  I clearly don't know how to fix it or just skip it, any help? Ebrahim Ramadan (@ebrahim-ramadan) · 2024-08-12 · ♥ 1 turned out I was trying with the build url itself, just tried the main url worked just fine, see [this for rer](https://x.com/_Abdo_Salem/status/1822964164001735083)
