diegosouzapw/OmniRoute · error · SentinelBlockedError

Sentinel /prepare blocked (HTTP ${prepResp.status})

Error message

Sentinel /prepare blocked (HTTP ${prepResp.status})

What it means

Error "Sentinel /prepare blocked (HTTP ${prepResp.status})" thrown in diegosouzapw/OmniRoute.

Source

Thrown at open-sse/executors/chatgpt-web.ts:456

    ...browserHeaders(),
    ...oaiHeaders(sessionId, deviceId),
    "Content-Type": "application/json",
    Authorization: `Bearer ${accessToken}`,
    Cookie: buildSessionCookieHeader(cookie),
    Priority: "u=1, i",
  };
  if (accountId) headers["chatgpt-account-id"] = accountId;

  // Stage 1: POST /chat-requirements/prepare → { prepare_token, ... }
  const prepResp = await tlsFetchChatGpt(SENTINEL_PREPARE_URL, {
    method: "POST",
    headers,
    body: JSON.stringify({ p: prekey }),
    timeoutMs: 30_000,
    signal,
  });
  if (prepResp.status === 401 || prepResp.status === 403) {
    throw new SentinelBlockedError(`Sentinel /prepare blocked (HTTP ${prepResp.status})`);
  }
  if (prepResp.status >= 400) {
    throw new Error(`Sentinel /prepare failed (HTTP ${prepResp.status})`);
  }
  let prepData: ChatRequirements = {};
  try {
    prepData = JSON.parse(prepResp.text || "{}") as ChatRequirements;
  } catch {
    console.warn("[chatgpt-web] chat requirements prep JSON parse failed");
    /* keep empty */
  }
  // Stage 2: POST /chat-requirements with the prepare_token in the body. This
  // is the call that actually returns the chat-requirements-token used on the
  // conversation request.
  if (!prepData.prepare_token) {
    return prepData; // pass through whatever we got — caller handles missing fields
  }

View on GitHub (pinned to a179ffed5b)

When it happens

Trigger: Thrown at open-sse/executors/chatgpt-web.ts:456 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/d34499e776430b52. Report an issue: GitHub.