`Feature-Policy` error in Chrome devtools

[adamschwartz]

worker-sites-template/workers-site/index.js

Line 54 in 0adcb0e

response.headers.set('Feature-Policy', 'none')

See: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Feature-Policy

[mre]

I'm running into the same problems with my site.
As per your link the syntax is

Feature-Policy: <directive> <allowlist>

so we're missing the Feature Policy directive here.
As I doubt there is a sensible default that works for all pages here I'd propose to remove the header altogether.
Did so for my site and the error went away.