Retrieve an http/s url and checks its application type is application/json and the response content decodes properly into JSON.
Optionally verify content is found using data file.
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USAGE: check_http_json.pl -U http://my.url.com -d sample.data
-U URL to retrieve (http or https)
-d absolute path to data file containing hash to find with JSON response (optional)
-t Timeout in seconds to wait for the URL to load. If the page fails to load, will exit with UNKNOWN state (default 60)