 Require the user to specify a username.
 Require the user to specify a username.

 The 'required' attribute in the input form isn't sufficient, as not all browsers
 support it; notably, Safari does not.

scog1234/frontend,camelot-project/frontend,adamginsburg/frontend,e-koch/frontend,keflavich/frontend,e-koch/frontend,adamginsburg/frontend,scog1234/frontend,camelot-project/frontend,scog1234/frontend,camelot-project/frontend,keflavich/frontend,keflavich/frontend,adamginsburg/frontend,e-koch/frontend