Googlebot is Upgraded & Now Would Crawl New Websites with Less Issue
http://httpsaskseoninjacomblog.withtank.com/googlebot-is-upgraded-now-would-crawl-new-websites-with-less-issue/
Martin Splitt from Google informed users in the announcement on 7th May about the limitations of the latest version. He said: “You should check if you’re transpiling or use polyfills specifically for Googlebot