Package cors is net/http handler to handle CORS related requests as defined by http://www.w3.org/TR/cors/ You can configure it by passing an option struct to cors.New: c := cors.New(cors.Options{ AllowedOrigins: []string{"foo.com"}, AllowedMethods: []string{http.MethodGet, http.MethodPost, http.MethodDelete}, AllowCredentials: true, }) Then insert the handler in the chain: handler = c.Handler(handler) See Options documentation for more options.

DefaultClient returns an HTTP client with sane defaults.

TODO: Do we force close the TCP connection? https://stackoverflow.com/questions/72368886/is-there-a-way-to-drop-an-http-connection-in-golang-without-sending-anything-to https://www.bentasker.co.uk/posts/blog/software-development/golang-net-http-net-http-2-does-not-reliably-close-failed-connections-allowing-attempted-reuse.html.

WebappHandler is an http.Handler that is designed to efficiently serve Single Page Applications.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

CacheControlDynamic = "max-age=0, must-revalidate, public" // TODO https://web.dev/http-cache/, https://web.dev/love-your-cache/ CacheControlNoCache = "no-cache, no-store, no-transform, must-revalidate" // "no-cache, no-store, no-transform, must-revalidate, private, max-age=0".

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

TODO https://web.dev/http-cache/, https://web.dev/love-your-cache/.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching.

"no-cache, no-store, no-transform, must-revalidate, private, max-age=0".

https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types alternative value from the 'file' command line program: text/x-shellscript.