I am using Google Webfonts on my website. In the console on Chrome I get the following warning:
Blink is considering rejecting non spec-compliant cross-or
CORS header is not being served under certain circumstances. Fonts are failing to set this header randomly.
This is a Google bug and you can't fix this as they are not serving the header. I recommend to cease using this buggy Google CDN service and download fonts instead and serve them from your web server.