Looks like the ajax option to load more results doesn’t work.
Here’re my settings (attached), although when I click on ‘More results…’ – it still redirects to ?s={phrase}
Check the URL I submitted, try searching for ‘cabin’.
There is a disclaimer under the option saying that:
“Load more ajax results” option will not work if Polaroid layout or Grouping is activated, or if results are removed when no images are present.
You have results grouping active, therefore it’s not going to work. It’s an experimental feature yet, it’s probably going to work with all options in the future.