code: function getBlockedServers () {
    return fetch(`${SESSION_API}/blockedservers`, {
      headers: {
        'user-agent': USER_AGENT
      }
    })
      .then(handleErrors)
      .then(res => res.text())
      .then(text => text.split('\n').slice(0, -1))
  }
docs: Returns a list of SHA1 hashes used to check server addresses against when the client tries to connect.
  
  *See {@link http://wiki.vg/Mojang_API#Blocked_Servers} for how this list is used.*
  
  @returns {Promise<Array<string>>} resolves to a list of address hashes