diegosouzapw/OmniRoute · error

[codex] SSE payload parse failed, using raw payload

Error message

[codex] SSE payload parse failed, using raw payload

What it means

Error "[codex] SSE payload parse failed, using raw payload" thrown in diegosouzapw/OmniRoute.

Source

Thrown at open-sse/executors/codex.ts:734

export function encodeResponseSseEvent(raw: string): { sse: string; terminal: boolean } {
  let eventType = "message";
  let payload = raw;
  let terminal = false;

  try {
    const parsed = JSON.parse(raw);
    if (parsed && typeof parsed.type === "string" && parsed.type.trim()) {
      eventType = parsed.type.trim();
      if (eventType === "error" || eventType === "response.failed") {
        const failed = toCodexResponseFailedEvent(parsed as Record<string, unknown>);
        payload = JSON.stringify(failed);
        eventType = "response.failed";
      }
      terminal = eventType === "response.completed" || eventType === "response.failed";
    }
  } catch {
    console.warn("[codex] SSE payload parse failed, using raw payload");
    // Keep message as the generic SSE event for non-JSON upstream payloads.
  }

  // Env-gated: drop non-standard `codex.*` events (notably `codex.rate_limits`)
  // before they reach the client. They are NOT part of the OpenAI Responses API
  // and break strict consumers: the OpenAI SDK's responses.stream() chokes on
  // the unknown event type / empty data and tears the stream down, surfacing as
  // "Invalid state: Controller is already closed". The earlier empty-payload
  // check below never caught codex.rate_limits — over WS the frame carries a
  // non-empty JSON payload (`{"type":"codex.rate_limits", ...}`), so
  // `!payload.trim()` is false. Match by event type instead. Default ON via
  // OMNIROUTE_CODEX_DROP_NONSTANDARD_EVENTS (#11014); the HTTP transport is handled
  // separately by filterNonstandardCodexSse, since super.execute forwards the
  // upstream stream verbatim and never runs this function).
  if (eventType.startsWith("codex.") && codexDropNonstandardEvents()) {
    return { sse: "", terminal };
  }

View on GitHub (pinned to a179ffed5b)

When it happens

Trigger: Thrown at open-sse/executors/codex.ts:734 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of diegosouzapw/OmniRoute@a179ffed5b (2026-08-25). Data as JSON: /api/errors/3615bed9cf928ed4. Report an issue: GitHub.