diegosouzapw/OmniRoute · error · ClaudeWebProtocolError

SSE line exceeded the size limit

Error message

SSE line exceeded the size limit

What it means

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

Source

Thrown at open-sse/executors/claude-web/stream.ts:84

    this.name = "ClaudeWebProtocolError";
  }
}

async function* decodeSseData(
  source: ReadableStream<Uint8Array>,
  control: StreamControl
): AsyncGenerator<string, void, void> {
  const reader = source.getReader();
  control.reader = reader;
  const decoder = new TextDecoder();
  let buffer = "";
  let dataLines: string[] = [];
  let dataChars = 0;
  let reachedEof = false;

  const consumeLine = (rawLine: string): string | null => {
    if (rawLine.length > MAX_CLAUDE_WEB_SSE_PENDING_CHARS) {
      throw new ClaudeWebProtocolError("SSE line exceeded the size limit");
    }
    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) {

View on GitHub (pinned to a179ffed5b)

When it happens

Trigger: Thrown at open-sse/executors/claude-web/stream.ts:84 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/884675843140feec. Report an issue: GitHub.