Simon Wijckmans, founder of web security service c/aspect, also recommended against using the Polyfill.io CDN, stating that when Polyfill open source undertaking was alone "solid," and could be self-hosted by everyone in a controlled environment, "the issue lies within the domain cdn.polyfill.io which really should immediately be removed from https://atecan420jtc9.dekaronwiki.com/user