String comparison not working in Javascript when comparing an environment variable with a constant

We have a simple React application, created with CRA 1.x.

We installed dotenv to use environment variables on the project and our variables are included on the .env and .env.development files like this:

.env

REACT_APP_LOGGER=LOGGER

.env.development

REACT_APP_LOGGER=NO_LOGGER

Then in the code we have this logic:

if(process.env.REACT_APP_LOGGER === "LOGGER") {
    // do something
}

On local builds with webpack 4 in development mode the if is true, and on production mode is false.

But on azure, in both cases is false

process.env.REACT_APP_LOGGER === "LOGGER" // false

We have checked the value of process.env.REACT_APP_LOGGER and it is "LOGGER" type of string but the code is returning weird values:

console.log(process.env.REACT_APP_LOGGER)
console.log(process.env.REACT_APP_LOGGER === "LOGGER")
console.log(process.env.REACT_APP_LOGGER == "LOGGER")
console.log(typeof process.env.REACT_APP_LOGGER)

This is the output generated by the previous code:

LOGGER
false
false
string

Is there something I´m doing wrong? The weird part is that we have other string comparisons like this one and they are comparing correctly.

process.env.NODE_ENV === "production" // true 

EDIT: When we look at the transpiled code we see the following:

console.log("LOGGER"),
console.log(!1),
console.log(!1),
console.log(f("LOGGER"));

So I guess that means the comparison is done during build time (and as this is a constant it makes sense).