Cannot validate json response via a .env file (apparently)

I’m trying to resolve this task here:
https://www.freecodecamp.org/learn/apis-and-microservices/basic-node-and-express/use-the-.env-file

but even though the code I wrote is correct, FCC validator says is not correct
The code does what is suppose to do, that is changing to upper case when the env variable

MESSAGE_STYLE=uppercase

/** 5) serve JSON on a specific route */
var message = "Hello json";
app.get("/json", (req, res) => {
  res.json({
    message: message
  });
});

/** 6) Use the .env file to configure the app */

if (process.env.MESSAGE_STYLE === "uppercase") {
  message = "Hello json".toUpperCase();
} else {
  message = "Hello json";
}

here is the live link:

Glitch :・゚✧

why the code is not accepted? :frowning:

and the resut in the link https://foam-cacao.glitch.me/json is:
image

Thanks. But it should be a great idea to mention this in the task requirements :wink:
PS: this was a good lesson learned :slight_smile: