FYI: Blazor .net apps behind Cloudflare not working (fix/workaround)

Hi all

Thought I’d make a post here to help out anyone who is also experiencing issues with Blazor .net apps proxied behind Cloudflare.

As you’ve probably noticed, the apps just don’t work properly. After a lot of tinkering, we managed to trace the issue to minification. The workaround is simple - create a page rule matching for the URL on which the Blazor app is hosted (e.g. subdomain.domain.com/*) with an action of “Disable Performance”. This successfully works around the issue while still giving you most of the benefits of Cloudflare.

Hope this saves someone some time.

Regards,

A

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