var formView = "<%= escape_javascript(render partial: 'invites/form', locals: { dossier: @dossier }) %>";
document.querySelector("#invites-form").outerHTML = formView;

var flashMessagesView = "<%= escape_javascript(render partial: 'layouts/flash_messages') %>";
document.querySelector("#flash_messages").outerHTML = flashMessagesView;
<% flash.clear %>