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Passthrough ACME challenge HTTP request

                ...
"environments": {
    "Production": {
    "origin": {
        "address": "origin.example.com",
        "enable_sni": true
    },
...
            
                ...
"environments": {
    "Production": {
    "origin": {
        "address": "origin.example.com",
        "enable_sni": true,
        "proxy_acme_challenge": true
    },
...