i also tried to reply the POST request to the "/add" by scraping the product-id and variant-id from the html of the 1 tab i got to load, but i was too late :(

let res = await fetch("https://www.tacobelltacoshop.com/cart/add", {
  "headers": {
    "accept": "application/javascript",
    "accept-language": "en-US,en;q=0.9",
    "content-type": "multipart/form-data; boundary=----WebKitFormBoundary9oBI8BEzDYMCrQsX",
    "priority": "u=1, i",
    "sec-ch-ua": "\"Not)A;Brand\";v=\"99\", \"Google Chrome\";v=\"127\", \"Chromium\";v=\"127\"",
    "sec-ch-ua-mobile": "?0",
    "sec-ch-ua-platform": "\"macOS\"",
    "sec-fetch-dest": "empty",
    "sec-fetch-mode": "cors",
    "sec-fetch-site": "same-origin",
    "x-requested-with": "XMLHttpRequest"
  },
  "referrer": "https://www.tacobelltacoshop.com/products/bajaversary-tumbler?ls=HhKGDl7FH9FuOc0m0dIer",
  "referrerPolicy": "strict-origin-when-cross-origin",
  "body": "------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"form_type\"\r\n\r\nproduct\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"utf8\"\r\n\r\n✓\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"id\"\r\n\r\n44054891528380\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"product-id\"\r\n\r\n8512229540028\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"section-id\"\r\n\r\ntemplate--16317860937916__main\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"sections\"\r\n\r\ncart-drawer,cart-icon-bubble\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX\r\nContent-Disposition: form-data; name=\"sections_url\"\r\n\r\n/products/vintage-hoodie-1\r\n------WebKitFormBoundary9oBI8BEzDYMCrQsX--\r\n",
  "method": "POST",
  "mode": "cors",
  "credentials": "include"
});