My fight against CDN libraries
I only represent about 0.00000013% of all Chinese Internet users, but let me chime in: EVERY website that uses Google CDNs for js or fonts just doesn't work here. It just keeps loading and loading, and loading forever. In most cases it's jQuery, and in most cases it's in the  so the page just never shows. Cloudflare (cdnjs), Amazon CDNs, Akamai CDNs also occasionally get blocked and take entire Internet segments with them.If you use 3rd party CDNs, please consider implementing client-side failover strategy so you don't leave out 50% of the Internet "population".