Browser shows HTML. CLI returns JSON. Try: curl -s http://ANYHOST/anything -H 'X-Test: 1' -d 'hello=world' | jq | Raw body: /raw 
{
    "timestamp": "2025-12-22T01:27:12+00:00",
    "method": "GET",
    "scheme": "http",
    "host": "binv4.el-marchand.com",
    "uri": "/sitemap.xml",
    "path": "/sitemap.xml",
    "query_string": "",
    "query_params": [],
    "remote_addr": "140.248.79.66",
    "remote_port": "40867",
    "server_addr": "198.13.159.228",
    "server_port": "80",
    "headers": {
        "cdn-loop": "Fastly, Fastly",
        "fastly-ff": "5WKDXmpKTsNGWqv6yEK3z8lAgAYFG+fzXggdM0xSRv4=!CMH!cache-cmh1290121-CMH, 5WKDXmpKTsNGWqv6yEK3z8lAgAYFG+fzXggdM0xSRv4=!CMH!cache-cmh1290066-CMH",
        "fastly-client": "1",
        "x-varnish": "1458556667, 3476272742",
        "x-timer": "S1766366832.345039,VS0",
        "accept-encoding": "gzip",
        "fastly-orig-accept-encoding": "gzip, br, zstd, deflate",
        "x-forwarded-host": "binv4.el-marchand.com",
        "x-forwarded-server": "cache-cmh1290121-CMH",
        "x-forwarded-for": "216.73.216.169",
        "fastly-client-ip": "216.73.216.169",
        "fastly-ssl": "1",
        "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
        "accept": "*/*",
        "host": "binv4.el-marchand.com",
        "content-type": "",
        "content-length": ""
    },
    "body_size": 0,
    "body_base64": "",
    "body_text_preview": ""
}