message: always strip trailing /
diff: -const isURL = require('is-url')
  -
  exports.maybeURL = id => {
  // E.g, "appname-asdf"
  - return id.includes('-')
  -}
  + return id.includes('-');
  +};
  exports.normalizeURL = u => {
  // Normalize URL by removing slash from the end
  - if (isURL(u) && u.slice(-1) === '/') {
  - u = u.slice(0, -1)
  + if (u.slice(-1) === '/') {
  + u = u.slice(0, -1);
  }
  // `url` should match the hostname of the deployment
  - u = u.replace(/^https:\/\//i, '')
  + u = u.replace(/^https:\/\//i, '');
  if (!u.includes('.')) {
  // `.now.sh` domain is implied if just the subdomain is given
  - u += '.now.sh'
  + u += '.now.sh';
  }
  - return u
  -}
  + return u;
  +};
  