Remove cors signature, use global middleware to handle preflight request

fasthttp.go

@@ -32,7 +32,6 @@ type fastHTTPRouter struct {
 	fileServer        fasthttp.RequestHandler
 	notFound          fasthttp.RequestHandler
 	notAllowed        fasthttp.RequestHandler
-	cors              fasthttp.RequestHandler
 	handler           fasthttp.RequestHandler
 	middlewareCounter uint
 }
@@ -122,10 +121,6 @@ func (r *fastHTTPRouter) Compile() {
 	}
 }
 
-func (r *fastHTTPRouter) CORS(cors fasthttp.RequestHandler) {
-	r.cors = cors
-}
-
 func (r *fastHTTPRouter) NotFound(notFound fasthttp.RequestHandler) {
 	r.notFound = notFound
 }
@@ -208,7 +203,6 @@ func (r *fastHTTPRouter) serveHTTP(ctx *fasthttp.RequestCtx) {
 		ctx.Response.Header.Set("Allow", allow)
 
 		if method == fasthttp.MethodOptions {
-			r.serveCors(ctx)
 			return
 		}
 
@@ -221,12 +215,6 @@ func (r *fastHTTPRouter) serveHTTP(ctx *fasthttp.RequestCtx) {
 	r.serveNotFound(ctx)
 }
 
-func (r *fastHTTPRouter) serveCors(ctx *fasthttp.RequestCtx) {
-	if r.cors != nil {
-		r.cors(ctx)
-	}
-}
-
 func (r *fastHTTPRouter) serveNotFound(ctx *fasthttp.RequestCtx) {
 	if r.notFound != nil {
 		r.notFound(ctx)

nethttp.go

@@ -31,7 +31,6 @@ type router struct {
 	fileServer        http.Handler
 	notFound          http.Handler
 	notAllowed        http.Handler
-	cors              http.Handler
 	handler           http.Handler
 	middlewareCounter uint
 }
@@ -119,10 +118,6 @@ func (r *router) Compile() {
 	}
 }
 
-func (r *router) CORS(cors http.Handler) {
-	r.cors = cors
-}
-
 func (r *router) NotFound(notFound http.Handler) {
 	r.notFound = notFound
 }
@@ -207,7 +202,6 @@ func (r *router) serveHTTP(w http.ResponseWriter, req *http.Request) {
 		w.Header().Set("Allow", allow)
 
 		if req.Method == http.MethodOptions {
-			r.serveCors(w, req)
 			return
 		}
 
@@ -220,12 +214,6 @@ func (r *router) serveHTTP(w http.ResponseWriter, req *http.Request) {
 	r.serveNotFound(w, req)
 }
 
-func (r *router) serveCors(w http.ResponseWriter, req *http.Request) {
-	if r.cors != nil {
-		r.cors.ServeHTTP(w, req)
-	}
-}
-
 func (r *router) serveNotFound(w http.ResponseWriter, req *http.Request) {
 	if r.notFound != nil {
 		r.notFound.ServeHTTP(w, req)

router.go

@@ -82,10 +82,6 @@ type Router interface {
 	// NotFound replies to the request with the
 	// 405 Error code
 	NotAllowed(http.Handler)
-
-	// CORS handler replies to request with cors header and handles preflight request
-	// it is enhancement to improve middleware usability instead of wrapping every handler
-	CORS(http.Handler)
 }
 
 // FastHTTPRouter is a fasthttp micro framework, HTTP request router, multiplexer, mux
@@ -158,8 +154,4 @@ type FastHTTPRouter interface {
 	// NotFound replies to the request with the
 	// 405 Error code
 	NotAllowed(fasthttp.RequestHandler)
-
-	// CORS handler replies to request with cors header and handles preflight request
-	// it is enhancement to improve middleware usability instead of wrapping every handler
-	CORS(fasthttp.RequestHandler)
 }