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@@ -24,6 +24,36 @@ $ pnpm run deploy The worker name and other settings live in `wrangler.jsonc`. +## Browser extension redirects + +Pages cgithub can't render (marketing pages, code search, anything unrouted) are +redirected back to github.com. A browser extension that rewrites github.com URLs +to a cgithub instance with `declarativeNetRequest` will match those redirects +too and send the request straight back, looping forever. + +To avoid this, cgithub never answers with an HTTP redirect: it serves a small +page that navigates to github.com with a two-second `<meta http-equiv="refresh">`. +Because that navigation is initiated by the cgithub origin, the extension can +let it through with `excludedInitiatorDomains`; without that, the user at least +lands on a page they can stop on, with a link, instead of an endless loop. + +A rule that redirects to a cgithub instance should therefore look like this: + +```jsonc +{ + "action": { + "type": "redirect", + "redirect": { "transform": { "host": "cgithub.example" } }, + }, + "condition": { + "urlFilter": "||github.com", + "resourceTypes": ["main_frame"], + // So cgithub's own meta refresh to github.com isn't redirected back here. + "excludedInitiatorDomains": ["cgithub.example"], + }, +} +``` + ## Disclosures AI coding assistants, in particular Claude, are used in the development process. |