SSL VERSION OR CIPHER MISMATCH error on new free account


I just created my free account for workers, and followed the getting started steps to create a hello world app, available here: https://

However, when I try to access it (for the 1st time), I get this:

This site can’t provide a secure connection uses an unsupported protocol.


Welcome to the community!

You should disable TLS 1.0 and 1.1. It seems that you are using Cloudflare Workers. Haven’t used them yet, but this snippet may help you:

Hope it does!

I did not even get to the point where I write code. I just created the app using the default template that workers provides. My assumption is that they use a sub-domain of a sub-domain (see above) and their HTTPS cert is not configured that way.

Never late to give it a try!

For Workers, you obtain an HTTPS cert for *, * in your case.

Hope it helps!

This appears to render for me. It may have taken a few minutes for the SSL certificate to be initially issued for *.

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