overleaf/services/web/app/src/Features/Helpers/AsyncFormHelper.mjs

import { acceptsJson } from '../../infrastructure/RequestContentTypeDetection.mjs'

export default {
  redirect,
}

// redirect the request via headers or JSON response depending on the request
// format
function redirect(req, res, redir) {
  if (acceptsJson(req)) {
    res.json({ redir })
  } else {
    res.redirect(redir)
  }
}