code: @Nonnull
    public CSP2SourceList addHost (@Nonnull final ISimpleURL aHost)
    {
      ValueEnforcer.notNull (aHost, "Host");
      return addHost (aHost.getAsStringWithEncodedParameters ());
    }
docs: Add a host
  
  @param aHost
  Host to add. Must be a valid URL.
  @return this