gzuidhof/coi-serviceworker

The coi-serviceworker project enables cross-origin isolation (COOP and COEP) for web applications where server header control isn't possible, such as GitHub Pages. It achieves this by injecting the necessary headers through a service worker when a user first visits the page. This tool is particularly useful for developers hosting static sites on platforms that don't allow custom HTTP headers, enabling access to powerful web APIs like SharedArrayBuffer.