lib/transforms/html.removeManifest.js
function transform (opts) {
  var contents = opts.contents;

  var $ = cheerio.load(contents);
  $('html').removeAttr('manifest'); // drop AppCache manifest attributes
  return $.html();
}
function transform (opts) {
  var contents = opts.contents;

  var $ = cheerio.load(contents);
  $('html').removeAttr('manifest'); // drop AppCache manifest attributes
  return $.html();
}
/*
interface StringTransformOptions {
contents: String,
fetcher: Fetcher,
filePath: String,
index: FetcherIndex
}
 transform (opts: StringTransformOptions) => String