The demo (http://search.localhost:8000/static/off.html) should reset results when the user enters a new query

[raphael0202]

When the user makes a new search query, the result page is not emptied when clicking on the search icon.
As a result, if the HTTP request failed (ex: HTTP 500), the previous results are still displayed, which is really confusing for the user.

Displaying the error message in case the query failed would also help a lot.