{"record":{"id":"5e4f6d24f7deecfa","repo":"Zackriya-Solutions/meetily","slug":"partial-response-is-missing-content-range","errorCode":null,"errorMessage":"Partial response is missing Content-Range","messagePattern":"Partial response is missing Content-Range","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs","lineNumber":759,"sourceCode":"        }\n        Ok(())\n    }\n\n    fn validate_partial_response(\n        response: &reqwest::Response,\n        expected_start: u64,\n        exact_bytes: u64,\n    ) -> Result<()> {\n        if response.status() != reqwest::StatusCode::PARTIAL_CONTENT {\n            return Err(anyhow!(\n                \"Expected partial 206 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!(\"Partial response is missing Content-Range\"))?;\n        let ContentRange::Range { start, end, total } = parse_content_range(content_range)? else {\n            return Err(anyhow!(\"Partial response has an unsatisfied Content-Range\"));\n        };\n        if start != expected_start || end != exact_bytes - 1 || total != exact_bytes {\n            return Err(anyhow!(\n                \"Partial response range {}-{} / {} does not match {}-{} / {}\",\n                start,\n                end,\n                total,\n                expected_start,\n                exact_bytes - 1,\n                exact_bytes\n            ));\n        }\n        let expected_length = end\n            .checked_sub(start)\n            .and_then(|length| length.checked_add(1))\n            .ok_or_else(|| anyhow!(\"Partial response range length overflow\"))?;","sourceCodeStart":741,"sourceCodeEnd":777,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/a2cb62e827da7ef59f65064c97233efb2313878e/frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs#L741-L777","documentation":"Thrown by `validate_partial_response` when a 206 response carries no `Content-Range` header. RFC 7233 requires 206 responses to include Content-Range; without it the downloader cannot verify which byte span was returned, so it fails rather than silently trusting the body.","triggerScenarios":"Server replies 206 Partial Content to a Range request for the Parakeet model but omits the Content-Range header.","commonSituations":"Non-compliant custom mirror or lightweight HTTP server emitting 206 without the header; proxy stripping the Content-Range header from responses.","solutions":["Use a standards-compliant server/mirror for the model download.","Fall back to a full (non-range) download from byte 0.","Check whether a proxy or CDN is stripping the Content-Range header and bypass it."],"exampleFix":null,"handlingStrategy":"fallback","validationCode":"let probe = client.get(url).header(\"Range\", \"bytes=0-0\").send().await?;\nif probe.status() == reqwest::StatusCode::PARTIAL_CONTENT && probe.headers().get(\"content-range\").is_none() {\n    eprintln!(\"server returns 206 without Content-Range; avoid resuming here\");\n}","typeGuard":null,"tryCatchPattern":"match result {\n    Err(e) if e.to_string().contains(\"missing Content-Range\") => fall_back_to_full_download(),\n    other => other,\n}","preventionTips":["Use standards-compliant HTTP servers/CDNs for model hosting.","Check that proxies don't strip Content-Range.","Resume only from mirrors that passed a range-support probe."],"tags":["network","http","http-headers","download"],"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"}