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LICENSE Added Google Fonts worker example Oct 26, 2018
README.md Added a third-party-scripts example and cleaned up a few edge cases w… Nov 13, 2018
fast-google-fonts.js Added support for sites using CSP Nov 26, 2018


Fast Google Fonts

Significantly improves performance of Google Fonts:

  • Rewrites the HTML and puts the browser-specific Google Fonts CSS directly in the HTML (eliminating the round trips for fetching the CSS and improving overall page rendering performance).
  • Proxies the font files through the same domain as the page, eliminating the round-trips to connect to Google's servers and allowing HTTP/2 priorities to work correctly.

The code also provides an example of how to do streaming HTML rewriting effectively in a Cloudflare Worker.


For testing purposes it also supports turning off the worker through query parameters added to the page URL:

  • cf-worker=bypass disables all rewriting. i.e. https://www.example.com/?cf-worker=bypass


BSD 3-Clause licensed. See the LICENSE file for details.