oven-sh/bun · error · http::Error

HTTP3Unsupported

HTTP3Unsupported

Error message

HTTP3Unsupported

What it means

Error "HTTP3Unsupported" thrown in oven-sh/bun.

Source

Thrown at src/http/error.rs:50

    #[error("AbortedBeforeConnecting")]
    AbortedBeforeConnecting,
    #[error("InvalidURL")]
    InvalidURL,
    #[error("ERR_TLS_CERT_ALTNAME_INVALID")]
    ERR_TLS_CERT_ALTNAME_INVALID,
    #[error("ClientAborted")]
    ClientAborted,
    #[error("HTTP2Unsupported")]
    HTTP2Unsupported,
    #[error("ConnectionClosed")]
    ConnectionClosed,
    #[error("DNSResolveFailed")]
    DNSResolveFailed,
    #[error("ConnectionRefused")]
    ConnectionRefused,
    #[error("TooManyRedirects")]
    TooManyRedirects,
    #[error("HTTP3Unsupported")]
    HTTP3Unsupported,
    #[error("ResponseHeadersTooLarge")]
    ResponseHeadersTooLarge,
    #[error("UnrequestedUpgrade")]
    UnrequestedUpgrade,
    #[error("UnexpectedData")]
    UnexpectedData,
    #[error("InvalidHTTPResponse")]
    InvalidHTTPResponse,
    #[error("InvalidContentLength")]
    InvalidContentLength,
    #[error("UnsupportedTransferEncoding")]
    UnsupportedTransferEncoding,
    #[error("RequestBodyNotReusable")]
    RequestBodyNotReusable,
    #[error("UnsupportedRedirectProtocol")]
    UnsupportedRedirectProtocol,
    #[error("RedirectURLTooLong")]

View on GitHub (pinned to 8c5296ac45)

When it happens

Trigger: Thrown at src/http/error.rs:50 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of oven-sh/bun@8c5296ac45 (2026-08-16). Data as JSON: /api/errors/8834f2349cca664b. Report an issue: GitHub.