Magento 2 Module to add ajax navigation to elasticsuite module
$ composer require "web200/magento-elasticsuite-ajax":"*"
In order to cache classic page and xhr request you need to set different cache in varnish. Thanks @mfickers
sub vcl_hash {
...
# Sort AJAX requests distinct from regular requests
if (req.http.X-Requested-With == "XMLHttpRequest"){
hash_data(req.http.X-Requested-With);
}
...
}