Code not saving CSV

[John_Gonzalez]

I have the following code, what it does is it uses the client id and client secret to get an access token, then uses the token to fetch a csv from our sql url, only issue is when I run the code I get an HTML pages code saved as a CSV: Any clue why this is happening and how I can fix it? 

const express = require("express");
const routes = require("./routes");
const bodyParser = require('body-parser');
const qs = require('querystring')
const cron = require('node-cron');
const path = require('path');
const fs = require('fs');

const clientId = 'Removed for Security'; 
const clientSecret = 'Removed for Security'; 
const querySlug = 'ty9skkkgc4qk2b'; // Replace with your query slug

// Set the authentication API request URL and parameters
const authUrl = 'https://hawxservices.cloud.looker.com:19999/api/3.1/login';
const authParams = new URLSearchParams({
    client_id: clientId,
    client_secret: clientSecret,
});

// Authenticate with the Looker API and retrieve an access token
fetch(authUrl, {
    method: 'POST',
    body: authParams,
})
    .then((response) => response.json())
    .then((data) => {
        const accessToken = data.access_token;
        console.log(accessToken);
        // Set the API request headers with the access token
        
        const headers = {
            Authorization: `Bearer ${accessToken}`,
        };

        // Set the API request URL to retrieve the query results as a CSV file
        const resultsUrl = `https://hawxservices.cloud.looker.com/sql/${querySlug}?format=csv`;

        // Make the API request to retrieve the query results as a CSV file
        fetch(resultsUrl, {
            headers: headers,
        })
            .then((response) => {
                // Extract the response body as a string
                return response.text();
            })
            .then((csvData) => {
                // Save the file to the specified path
                const filePath = 'C:/Users/Change Later/Documents/LookerCSVs/query_results.csv';
                fs.writeFileSync(filePath, csvData, { encoding: 'utf8' });
                console.log(`File saved to ${filePath}`);
            })
            .catch((error) => console.error(error));
    })
    .catch((error) => console.error(error));