I tried your extension and it is working.
But when I enabled elastic search I'm getting an error
[2017-05-04 08:04:46] report.CRITICAL: query_parsing_exception: [terms] query does not support [in] within lookup element [] []
Please look into it on high priority because I'm stuck in middle.
I tried your extension and it is working. But when I enabled elastic search I'm getting an error [2017-05-04 08:04:46] report.CRITICAL: query_parsing_exception: [terms] query does not support [in] within lookup element [] [] Please look into it on high priority because I'm stuck in middle.
[https://magento.stackexchange.com/questions/137264/magento-2-elasticsearch-category-page-throwing-error]