{"record":{"id":"e1c66d7396b397ad","repo":"Zackriya-Solutions/meetily","slug":"416-response-is-missing-content-range","errorCode":null,"errorMessage":"416 response is missing Content-Range","messagePattern":"416 response is missing Content-Range","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs","lineNumber":800,"sourceCode":"                    content_length,\n                    expected_length\n                ));\n            }\n        }\n        Ok(())\n    }\n\n    fn validate_unsatisfied_response(response: &reqwest::Response, exact_bytes: u64) -> Result<()> {\n        if response.status() != reqwest::StatusCode::RANGE_NOT_SATISFIABLE {\n            return Err(anyhow!(\n                \"Expected range-not-satisfiable 416 response, received {}\",\n                response.status()\n            ));\n        }\n        let content_range = response\n            .headers()\n            .get(reqwest::header::CONTENT_RANGE)\n            .ok_or_else(|| anyhow!(\"416 response is missing Content-Range\"))?;\n        match parse_content_range(content_range)? {\n            ContentRange::Unsatisfied { total } if total == exact_bytes => Ok(()),\n            ContentRange::Unsatisfied { total } => Err(anyhow!(\n                \"416 response reports {} total bytes, expected {}\",\n                total,\n                exact_bytes\n            )),\n            ContentRange::Range { .. } => Err(anyhow!(\"416 response has a satisfied Content-Range\")),\n        }\n    }\n\n    async fn download_model_detailed_from_source(\n        &self,\n        model_name: &str,\n        model_dir: &Path,\n        base_url: &str,\n        artifacts: &[ArtifactSpec],\n        progress_callback: Option<Box<dyn Fn(DownloadProgress) + Send>>,","sourceCodeStart":782,"sourceCodeEnd":818,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/a2cb62e827da7ef59f65064c97233efb2313878e/frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs#L782-L818","documentation":"When the server does return 416 to the size-probe Range request, HTTP requires a Content-Range: bytes */<total> header declaring the full resource size. validate_unsatisfied_response throws this error when the 416 response arrives without that header, so the engine cannot confirm the file's exact byte length.","triggerScenarios":"A server (or intermediary) replies 416 to the Range: bytes=<exact_bytes>- probe but omits the Content-Range header entirely.","commonSituations":"Hand-rolled or minimal HTTP file servers that send 416 without Content-Range; misconfigured API gateways that drop headers on error responses; older or non-compliant static file servers.","solutions":["Fix or replace the model server so 416 responses include Content-Range: bytes */<total> (RFC 9110 compliant).","Test with curl -r <size>- -i <url> and inspect whether Content-Range is present.","Bypass header-stripping gateways/proxies by using the upstream host directly.","Delete the partial file and re-download from a compliant source (e.g. huggingface.co)."],"exampleFix":"// before (non-compliant server reply)\nHTTP/1.1 416 Requested Range Not Satisfiable\n// after (compliant)\nHTTP/1.1 416 Requested Range Not Satisfiable\nContent-Range: bytes */2439443128","handlingStrategy":"fallback","validationCode":"// check a 416 reply carries Content-Range\ncurl -s -D - -o /dev/null -r 999999999- <base_url>/<filename> | grep -i content-range","typeGuard":null,"tryCatchPattern":"if let Err(e) = download_result {\n    if e.to_string().contains(\"missing Content-Range\") {\n        // server is RFC-noncompliant: force a full re-download instead of resume\n        delete_partial(model_dir, filename)?;\n        return retry_download_fresh().await;\n    }\n    return Err(e.into());\n}","preventionTips":["Serve models from RFC 9110-compliant servers that include Content-Range on 416.","Check gateways/API middleware for header-stripping on error responses.","Prefer canonical upstream hosts over custom static servers.","On this error, delete partial files to skip the 416 probe path."],"tags":["http","download","headers","resume"],"backgroundTag":"unexpected-response-shape","analyzedSha":"a2cb62e827da7ef59f65064c97233efb2313878e","analyzedAt":"2026-09-12T11:12:14.152Z","contentChangedAt":"2026-09-12T11:12:14.152Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}