Error while converting SVG

Error message

The required - svg - post parameter is missing

Debug steps

  1. Copy the SVG:
  2. Go to validator.w3.org/#validate_by_input
  3. Paste the SVG
  4. Click More Options and select SVG 1.1 for Use Doctype
  5. Click the Check button

Request Headers

Header Value
connection Close
referer http://maisperto.onecare.pt/OneCareMaisPerto/js/jsutils.js
accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
host maisperto.onecare.pt:80
user-agent arquivo-web-crawler (compatible; heritrix/3.3.0-SNAPSHOT-2019-08-26T10:34:48Z +http://arquivo.pt)