How about sending the GET request yourself ? You can see what your code really does. You could also console.log process.env.MESSAGE_STYLE to check it really is what you think it is.
Please note: Glitch has been unstable, for the past few weeks, and the Basic Node and Express challenges have undergone breaking changes. We are aware of this, and are working to resolve this: https://github.com/freeCodeCamp/freeCodeCamp/issues/39095
Some things you can do:
Use another platform: CodeSandbox, Repl.it, or similar, to fork the GitHub boilerplate.