How to clear icon cache?

I have a entry for test.example.com with match to default. It uses icon from example.com/favicon.ico. After I change the match to host, it still do not load test.example.com/favicon.ico.

Also, it does not seems to update the icon after icon is change.

Is there a way to force update?

No, the icons are cached with our CDN for up to 2 weeks. You’ll have to wait.