ALIAS or HOST

[dbauszus-glx]

process.env.ALIAS is used to provide the host in email templates. I believe this to be a legacy env which may not be required anymore.

`${req.headers.host.includes('localhost') && req.headers.host || process.env.ALIAS || req.headers.host}${process.env.DIR}`

[dbauszus-glx]

The origin header from the request object can be used instead of an ALIAS

{
  host: 'xyz-blog-dev.vercel.app',
  'x-real-ip': '152.37.79.88',
  'sec-fetch-user': '?1',
  'sec-ch-ua-mobile': '?0',
  'sec-fetch-site': 'same-origin',
  'upgrade-insecure-requests': '1',
  'cache-control': 'no-cache',
  referer: 'https://geolytix.dev/blog/api/user/register?register=true',
  'x-vercel-forwarded-for': '152.37.79.88',
  'sec-ch-ua': '"Google Chrome";v="119", "Chromium";v="119", "Not?A_Brand";v="24"',
  origin: 'https://geolytix.dev',
  'sec-ch-ua-platform': '"Linux"',
  'x-forwarded-host': 'xyz-blog-dev.vercel.app',
  accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7',
  'content-security-policy': "default-src 'self'; base-uri 'self'; object-src 'self'; connect-src 'self' geolytix.github.io *.geolytix.net *.maptiler.com *.mapbox.com *.googleapis.com www.google-analytics.com api.github.com isoline.router.hereapi.com router.hereapi.com maps.googleapis.com unpkg.com cdn.jsdelivr.net data:; worker-src 'self' blob:; child-src 'self' blob:; frame-src 'self' www.google.com www.gstatic.com; form-action 'self'; style-src 'self' 'unsafe-inline' unpkg.com fonts.googleapis.com cdn.jsdelivr.net geolytix.github.io; font-src 'self' unpkg.com fonts.gstatic.com cdn.jsdelivr.net geolytix.github.io; script-src 'self' 'unsafe-inline' unpkg.com cdn.skypack.dev api.mapbox.com *.googleapis.com www.google.com www.gstatic.com cdn.jsdelivr.net www.google-analytics.com www.googletagmanager.com geolytix.github.io maps.googleapis.com blob:; img-src 'self' geolytix.github.io api.ordnancesurvey.co.uk *.tile.openstreetmap.org api.mapbox.com res.cloudinary.com *.global.ssl.fastly.net raw.githubusercontent.com cdn.jsdelivr.net gitcdn.xyz maps.googleapis.com 2.aerial.maps.ls.hereapi.com fonts.gstatic.com data:",
  'x-vercel-ip-timezone': 'Europe/London',
  'x-forwarded-for': '152.37.79.88',
  'user-agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36',
  'content-type': 'application/x-www-form-urlencoded',
  'x-vercel-proxy-signature-ts': '1699984048',
  cookie: 'GEOLYTIX XYZ/MAPP Blog_redirect=/blog?',
  'x-vercel-ip-latitude': '51.5081',
  forwarded: 'for=152.37.79.88;host=xyz-blog-dev.vercel.app;proto=https;sig=0QmVhcmVyIDFiZTA2MzY3ODBiM2NhNjk4YThlYjdkNDBlMTE0Yjc0ODY4M2I5YmU5MTEyYjY0NTNiZDZlMmM5MmFmNWJkYmQ=;exp=1699984048',
  'x-vercel-deployment-url': 'dev-blog-n7a4actjb-geolytix1.vercel.app',
  'x-frame-options': 'DENY',
  'x-vercel-id': 'lhr1:lhr1::r2jks-1699983748835-fcf2b09696ff',
  'x-content-type-options': 'nosniff',
  'x-xss-protection': '1; mode=block',
  'x-vercel-ip-longitude': '-0.1278',
  'access-control-allow-headers': 'Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With',
  'accept-language': 'en-US,en;q=0.9,de;q=0.8,es;q=0.7,gl;q=0.6,zh-CN;q=0.5,zh;q=0.4,en-GB;q=0.3',
  'x-vercel-ip-country-region': 'ENG',
  'x-vercel-ip-country': 'GB',
  'x-forwarded-proto': 'https',
  'content-length': '72',
  'accept-encoding': 'gzip, deflate, br',
  'sec-fetch-mode': 'navigate',
  'x-vercel-proxied-for': '152.37.79.88',
  'x-vercel-ip-city': 'City%20of%20Westminster',
  'x-vercel-proxy-signature': 'Bearer 1be0636780b3ca698a8eb7d40e114b748683b9be9112b6453bd6e2c92af5bdbd',
  'sec-fetch-dest': 'document',
  connection: 'close'
}