actionpack/lib/action_dispatch/middleware/templates/rescues/_message_and_suggestions.html.erb
<% if exception_wrapper.has_corrections? %>
<div class="exception-message">
<%= simple_format h(exception_wrapper.original_message), { class: "message" }, wrapper_tag: "div" %>
</div>
<%
# The 'did_you_mean' gem can raise exceptions when calling #corrections on
# the exception. If it does there are no corrections to show.
corrections = exception_wrapper.corrections rescue []
%>
<% if corrections.any? %>
<b>Did you mean?</b>
<ul>
<% corrections.each do |correction| %>
<li class="correction"><%= h correction %></li>
<% end %>
</ul>
<% end %>
<% else %>
<div class="exception-message">
<%= simple_format h(exception_wrapper.message), { class: "message" }, wrapper_tag: "div" %>
</div>
<% end %>