Simon Wijckmans, founder of World-wide-web security service c/aspect, also advised from using the Polyfill.io CDN, stating that though Polyfill open source undertaking was itself "good," and will be self-hosted by everyone inside a managed ecosystem, "The difficulty lies within the domain cdn.polyfill.io which ought to immediately be removed from https://ericaa107fqz8.wikiconversation.com/user