Crawling JSON-LD Websites

(from github.com/cityofaikensc)
I have been trying to crawl the following website(https://library.municode.com/sc/aiken/codes/zoning_ordinance?nodeId=ZONING_ORDINANCE--GENERAL_PROVISIONS) without any success as it appears that the website is generating the main content using XHR requests and JSON-LD data (application/ld+json). Is it even possible for Fess to crawl these types of websites?

(from github.com/marevol)
It might work if installing jar file of fess-crawler-webdriver and configuring client.xml, but we support this feature in only Commercial Support at the moment.
IMO, it’s better to access a data source directly by using a data store crawling.