diegosouzapw/OmniRoute · error · ClaudeWebProtocolError

SSE event exceeded the size limit

Error message

SSE event exceeded the size limit

What it means

Error "SSE event exceeded the size limit" thrown in diegosouzapw/OmniRoute.

Source

Thrown at open-sse/executors/claude-web/stream.ts:103

    }
    const line = rawLine.endsWith("\r") ? rawLine.slice(0, -1) : rawLine;
    if (line === "") {
      if (dataLines.length === 0) return null;
      const data = dataLines.join("\n");
      dataLines = [];
      dataChars = 0;
      return data;
    }
    if (line.startsWith(":")) return null;

    const separatorIndex = line.indexOf(":");
    const field = separatorIndex < 0 ? line : line.slice(0, separatorIndex);
    let value = separatorIndex < 0 ? "" : line.slice(separatorIndex + 1);
    if (value.startsWith(" ")) value = value.slice(1);
    if (field === "data") {
      dataChars += value.length + (dataLines.length > 0 ? 1 : 0);
      if (dataChars > MAX_CLAUDE_WEB_SSE_PENDING_CHARS) {
        throw new ClaudeWebProtocolError("SSE event exceeded the size limit");
      }
      dataLines.push(value);
    }
    return null;
  };

  try {
    while (true) {
      const { value, done } = await reader.read();
      if (done) {
        reachedEof = true;
        break;
      }
      buffer += decoder.decode(value, { stream: true });

      let newlineIndex = buffer.indexOf("\n");
      while (newlineIndex >= 0) {
        const line = buffer.slice(0, newlineIndex);

View on GitHub (pinned to a179ffed5b)

When it happens

Trigger: Thrown at open-sse/executors/claude-web/stream.ts:103 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/5671a6953efd2acb. Report an issue: GitHub.