Browser shows HTML. CLI returns JSON. Try: curl -s http://ANYHOST/anything -H 'X-Test: 1' -d 'hello=world' | jq | Raw body: /raw 
{
    "timestamp": "2025-12-21T14:35:37+00:00",
    "method": "GET",
    "scheme": "http",
    "host": "binv4.el-marchand.com",
    "uri": "/",
    "path": "/",
    "query_string": "",
    "query_params": [],
    "remote_addr": "140.248.79.103",
    "remote_port": "64170",
    "server_addr": "198.13.159.228",
    "server_port": "80",
    "headers": {
        "cdn-loop": "Fastly, Fastly",
        "fastly-ff": "5WKDXmpKTsNGWqv6yEK3z8lAgAYFG+fzXggdM0xSRv4=!CMH!cache-cmh1290052-CMH, 5WKDXmpKTsNGWqv6yEK3z8lAgAYFG+fzXggdM0xSRv4=!CMH!cache-cmh1290103-CMH",
        "fastly-client": "1",
        "x-varnish": "3069340411, 28764757",
        "x-timer": "S1766327737.888085,VS0",
        "accept-encoding": "gzip",
        "fastly-orig-accept-encoding": "gzip, br, zstd, deflate",
        "x-forwarded-host": "binv4.el-marchand.com",
        "x-forwarded-server": "cache-cmh1290052-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": ""
}