"...it[using a CDN] also has downsides when it comes to privacy, security, and systemic risk, and it may actually be slower in some common cases. Here are some

"...it[using a CDN] also has downsides when it comes to privacy, security, and systemic risk, and it may actually be slower in some common cases. Here are some reasons not to use a javascript CDN, and some alternatives to consider instead."