You can still have Spectre attacks, check out this blot post https://blog.cloudflare.com/mitigating-spectre-and-other-security-threats-the-cloudflare-workers-s

You can still have Spectre attacks, check out this blot post https://blog.cloudflare.com/mitigating-spectre-and-other-security-threats-the-cloudflare-workers-security-model/ https://blog.cloudflare.com/mitigating-spectre-and-other-sec...