CF workers ( production/logs/live ) logger problem, does CF supports headers for POST method?

when i do GET reqs on app.my.workers.dev i can use cf live logger or equaly use localhost with wrangler dev normally. and request params are avail
but when i do POST req i can see only a part of request in live logger as follow

"outcome": "ok",
  "scriptName": null,
  "exceptions": [],
  "logs": [],
  "eventTimestamp": 1637686608568,
  "event": {
    "request": {
      "url": "https://app  - skip    .workers.dev/",
      "method": "POST",
      "headers": {
        "accept": "application/json, text/plain, */*",
        "accept-encoding": "gzip",
        "cf-connecting-ip": "95.163.37.96",
        "cf-ipcountry": "RU",
        "cf-ray": "6b2beed78fc9426c",
        "cf-visitor": "{\"scheme\":\"https\"}",
        "connection": "Keep-Alive",
        "content-length": "819",
        "content-type": "application/json;charset=utf-8",
        "host": "app  - skip - .dev",
        "user-agent": "axios/0.19.2",
        "x-forwarded-proto": "https",
        "x-real-ip": "95.163.37.96"
      },
      "cf": {
        "clientTcpRtt": 46,
        "longitude": "37.60680",
        "latitude": "55.73860",
        "tlsCipher": "ECDHE-RSA-AES128-GCM-SHA256",
        "continent": "EU",
        "asn": 47764,
        "country": "RU",
        "tlsClientAuth": {
          "certIssuerDNLegacy": "",
          "certIssuerSKI": "",
          "certSubjectDNRFC2253": "",
          "certSubjectDNLegacy": "",
          "certFingerprintSHA256": "",
          "certNotBefore": "",
          "certSKI": "",
          "certSerial": "",
          "certIssuerDN": "",
          "certVerified": "NONE",
          "certNotAfter": "",
          "certSubjectDN": "",
          "certPresented": "0",
          "certRevoked": "0",
          "certIssuerSerial": "",
          "certIssuerDNRFC2253": "",
          "certFingerprintSHA1": ""
        },
        "tlsExportedAuthenticator": {
          "clientFinished": "",
          "clientHandshake": "",
          "serverHandshake": "",
          "serverFinished": ""
        },
        "tlsVersion": "TLSv1.2",
        "colo": "AMS",
        "timezone": "Europe/Moscow",
        "edgeRequestKeepAliveStatus": 1,
        "requestPriority": "",
        "asOrganization": "Mail.Ru LLC",
        "httpProtocol": "HTTP/1.1"
      }
    }
  },
  "id": 3

I can’t see headers of req. If i test it with wrangler dev i see in console
2021-11-23 20:20:26] OPTIONS app -skip- .workers.dev/ HTTP/1.1 404 Not Found

why 404 , OPTIONS req?