.env challenge replit

Hello, for some reason, I’m not passing the test on fcc but the code works. Can anyone tell me what I’m doing wrong?
Here’s the code:

https://boilerplate-express-2.veljkocukic.repl.co/json

var express = require('express');
var app = express();
const mySecret = process.env['MESSAGE_STYLE']



app.get("/json",(req,res)=>{
  if(mySecret === "uppercase"){
    res.json({"message":"HELLO JSON"})
  }else{
    res.json({"message":"Hello json"})
  }
})

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Thank you.