Function sendError

web-common/src/lib/rpc.ts:70–77

(
  id: string | number | null,
  error: { code: number; message: string; data?: unknown },
)

}

function sendError(
  id: string | number | null,
  error: { code: number; message: string; data?: unknown },
) {
  if (window.parent !== window) {
    window.parent.postMessage({ id, error } as JSONRPCResponse, "*");
  }
}

export function createIframeRPCHandler() {
  const handler = (event: MessageEvent) => {