CORS Flags & Options
Cross-Origin Resource Sharing.All CORS pages
- chrome --disable-web-security --user-data-dir: turn off CORS for local testingChrome --disable-web-security turns off the same-origin policy only together with --user-data-dir. Why the flag seems ignored, the risks, and better CORS fixes.
- http-server --cors: serve local files with Access-Control-Allow-Originhttp-server --cors adds Access-Control-Allow-Origin: * and a fixed Allow-Headers list; --cors=Authorization extends it. No credentials or methods header.
- live-server --cors: reflect the request Origin and allow credentials in developmentlive-server --cors echoes the request Origin and sets Allow-Credentials: true, so cookies work cross-origin in development. Compared with http-server and serve.
- serve -C (--cors): enable CORS on the Vercel serve static serverserve -C (--cors) sends Allow-Origin *, Allow-Headers *, Allow-Credentials true and Private-Network headers. Credentials still fail with the wildcard origin.