Unified throws an error when a empty .html file is present.

[cpetta]

  1:1  error  Error: hast-util-to-nlcst expected position on nodes
    at toNlcst (C:\sandpaper\node_modules\hast-util-to-nlcst\index.js:66:11)
    at transformer (C:\sandpaper\node_modules\rehype-retext\index.js:32:16)
    at wrapped (C:\sandpaper\node_modules\trough\wrap.js:25:19)
    at next (C:\sandpaper\node_modules\trough\index.js:57:24)
    at Object.run (C:\sandpaper\node_modules\trough\index.js:31:10)
    at executor (C:\sandpaper\node_modules\unified\index.js:295:20)
    at Function.run (C:\sandpaper\node_modules\unified\index.js:292:5)
    at transform (C:\sandpaper\node_modules\unified-engine\lib\file-pipeline\transform.js:14:23)
    at wrapped (C:\sandpaper\node_modules\trough\wrap.js:25:19)
    at next (C:\sandpaper\node_modules\trough\index.js:57:24)

× 1 error
C:\sandpaper\node_modules\async-done\index.js:18
    throw err;
    ^

Error [ERR_UNHANDLED_ERROR]: Unhandled error. ({
  uid: 8,
  name: 'lintHtmlContent',
  branch: false,
  error: Error: premature close
      at onclosenexttick (C:\sandpaper\node_modules\end-of-stream\index.js:53:86)
      at processTicksAndRejections (internal/process/task_queues.js:75:11),
  duration: [ 0, 173272219 ],
  time: 1570644121417
})
    at Gulp.emit (events.js:199:17)
    at Gulp.EventEmitter.emit (domain.js:476:20)
    at Object.error (C:\sandpaper\node_modules\undertaker\lib\helpers\createExtensions.js:61:10)
    at handler (C:\sandpaper\node_modules\now-and-later\lib\mapSeries.js:47:14)
    at f (C:\sandpaper\node_modules\once\once.js:25:25)
    at f (C:\sandpaper\node_modules\once\once.js:25:25)
    at tryCatch (C:\sandpaper\node_modules\async-done\index.js:24:15)
    at DestroyableTransform.done (C:\sandpaper\node_modules\async-done\index.js:40:12)
    at DestroyableTransform.f (C:\sandpaper\node_modules\once\once.js:25:25)
    at onclosenexttick (C:\sandpaper\node_modules\end-of-stream\index.js:53:73) {
  context: {
    uid: 8,
    name: 'lintHtmlContent',
    branch: false,
    error: Error: premature close
        at onclosenexttick (C:\sandpaper\node_modules\end-of-stream\index.js:53:86)
        at processTicksAndRejections (internal/process/task_queues.js:75:11),
    duration: [ 0, 173272219 ],
    time: 1570644121417
  }
}

[cpetta]

The function that the error originates from:

function lintHtmlContent() {
	return gulp.src(paths.src.html)
		.pipe(
			engine({name: 'gulp-unified', processor: require('unified')})()
				.use(parse)
				.use(
					rehype2retext,
					unified()
						.use([unifiedPlugins])
						.use(quotes, {preferred: 'straight'})
				)
				.use(stringify)
		);
}