replace cgi.escape by html.escape because is deprecated (#3) and change Content-Type to json

index.py

@@ -3,6 +3,7 @@
 
 # IMPORTATION
 import cgi
+import html
 import json
 import ssl
 import hashlib
@@ -106,7 +107,7 @@ def headers_validation(DOMAIN):
 # MAIN
 
 
-print("Content-Type: text/html")
+print("Content-Type: application/json")
 print("")
 fs = cgi.FieldStorage()
 
@@ -117,7 +118,7 @@ if "domain" not in fs:
     print("{ERROR}")
     cgi.sys.exit(0)
 
-domain = cgi.escape(fs["domain"].value)
+domain = html.escape(fs["domain"].value)
 
 if dnssec_validation(domain) is True:
     JSON_DATA["DNSSEC"] = True