{"record":{"id":"4a5d294b2ad35c15","repo":"Zackriya-Solutions/meetily","slug":"416-response-has-a-satisfied-content-range","errorCode":null,"errorMessage":"416 response has a satisfied Content-Range","messagePattern":"416 response has a satisfied Content-Range","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs","lineNumber":808,"sourceCode":"    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>>,\n    ) -> Result<()> {\n        let active_download = self.reserve_active_download(model_name).await?;\n        self.set_downloading_status(model_name, 0).await;\n\n        let result = self\n            .download_artifacts(\n                model_name,\n                model_dir,","sourceCodeStart":790,"sourceCodeEnd":826,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/a2cb62e827da7ef59f65064c97233efb2313878e/frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs#L790-L826","documentation":"A 416 response must carry an unsatisfied Content-Range (bytes */<total>) per RFC 9110. This error is thrown when the 416 reply instead contains a satisfied range (bytes <start>-<end>/<total>), which is protocol-violating and gives the engine no reliable total size to validate against.","triggerScenarios":"The server responds 416 but with a Content-Range of the satisfied form (e.g. bytes 0-99/1000) instead of the asterisk form, during the resume size-probe.","commonSituations":"Non-compliant or buggy file servers that echo back the last valid range on error; middleware that rewrites Content-Range headers; custom static servers implemented incorrectly.","solutions":["Fix the server to emit the unsatisfied form 'Content-Range: bytes */<total>' for out-of-bounds Range requests.","Bypass the non-compliant server and download from the canonical Hugging Face URL.","Delete the partial file so the engine skips the 416 probe path entirely and issues a plain GET.","Report/work around by serving the model from a compliant host (nginx, S3, huggingface.co)."],"exampleFix":"// before (buggy server)\nHTTP/1.1 416 Requested Range Not Satisfiable\nContent-Range: bytes 0-1048575/2439443128\n// after (compliant)\nHTTP/1.1 416 Requested Range Not Satisfiable\nContent-Range: bytes */2439443128","handlingStrategy":"fallback","validationCode":"// inspect the Content-Range form returned on out-of-bounds Range requests\ncurl -s -D - -o /dev/null -r 999999999- <base_url>/<filename> | grep -i content-range\n// compliant: 'bytes */<total>'; non-compliant: 'bytes <start>-<end>/<total>'","typeGuard":null,"tryCatchPattern":"if let Err(e) = download_result {\n    if e.to_string().contains(\"satisfied Content-Range\") {\n        // server malformed: drop the partial file so no Range probe is issued\n        delete_partial(model_dir, filename)?;\n        return retry_download_fresh().await;\n    }\n    return Err(e.into());\n}","preventionTips":["Fix custom file servers to emit the asterisk-form Content-Range on 416.","Prefer battle-tested servers (nginx, S3, huggingface.co) for model hosting.","Add an integration test asserting the 416 Content-Range form.","Deleting the partial file bypasses the probe path entirely."],"tags":["http","download","headers","protocol"],"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"}