jinja json template adds an extra comma breaking json structure

[David Neudorfer]

How can I stop the look inside the jinja template so when it gets the the last item it doesn't add a comma at the end breaking the json format. I can clearly the very last command on the 5th to last line is whats wrong but I can't come up with a solution to this problem. Thanks!

This is my jinja template:

{
   "checks":
      {
{% if elite_receipt_active_domains is defined %}
{% for check in elite_receipt_active_domains %}
    "{{ check.domain }}-cert_check": {
      "command": "/etc/sensu/plugins/check-https-cert.rb --url https://{{ check.domain }} --warning 30 --critical 10",
      "handlers": [
        {{ check.handlers | to_nice_json }}
      ],
      "interval": {{ ssl_cert_check_interval }},
      "standalone": true,
      "subscribers": ["test"]
    },
{% endfor %}
{% for check in elite_receipt_active_domains %}
    "{{ check.domain }}-http_redirect_check": {
      "command": "/etc/sensu/plugins/check-http.rb --url https://{{ check.domain }} -s false --response-code 301 --redirect-to https://{{ check.domain }} ",
      "handlers": [
        {{ check.handlers | to_nice_json }}
      ],
      "interval": {{ http_redirect_checK_interval }},
      "standalone": true
    },
{% endfor %}
{% for check in elite_receipt_active_domains %}
    "{{ check.domain }}-https_check": {
      "command": "/etc/sensu/plugins/check-http.rb --url https://{{ check.domain }} -s true ",
      "handlers": [
        {{ check.handlers | to_nice_json }}
      ],
      "interval": {{ http_check_interval }},
      "standalone": true
    },
{% endfor %}
{% endif %}
  }
}