Function shouldSkipStreamRewind

src/hold-stream.ts:12–23

(
  previousClean: string,
  nextClean: string,
)

 * string (e.g. stripping a trailing incomplete tag). Keeps layout stable.
 */
export function shouldSkipStreamRewind(
  previousClean: string,
  nextClean: string,
): boolean {
  if (!previousClean || !nextClean) {
    return false;
  }
  return (
    nextClean.length < previousClean.length &&
    previousClean.startsWith(nextClean)
  );
}

/**
 * Grow-only min-height while streaming so the container never collapses