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Request limits

Input Limit or behavior
Headers 16 KiB; up to 100 fields
Query string 8 KiB; at most 1,000 parsed keys
POST body 128 KiB; JSON object only
Header timeout 10 seconds
Request timeout 30 seconds
Request body methods POST only for non-empty bodies
Content type application/json for non-empty bodies
Transfer encoding Requests with this header are rejected

Send a known Content-Length; do not use chunked requests. Invalid JSON, arrays, primitive bodies, invalid UTF-8, and length mismatches are rejected. Gate and body parser rejections return 400. These limits are fixed in the server.

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