Function closeWebSocketSafely

src/browser/contexts/API.tsx:84–93

(ws: WebSocket)

const noopConnectionControl = (_token?: string) => undefined;

function closeWebSocketSafely(ws: WebSocket) {
  try {
    // readyState: 0 = CONNECTING, 1 = OPEN, 2 = CLOSING, 3 = CLOSED
    if (ws.readyState === 2 || ws.readyState === 3) return;
    ws.close();
  } catch {
    // Some browsers throw if close() is called while already closing/closed.
    // Since our cleanup can be invoked from multiple code paths, treat close as idempotent.
  }
}

function isRecord(value: unknown): value is Record<string, unknown> {
  return typeof value === "object" && value !== null;