fastcgi: Add support for OPTIONS requests

middleware/fastcgi/fastcgi.go

@@ -70,6 +70,8 @@ func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error)
 				resp, err = fcgi.Head(env)
 			case "GET":
 				resp, err = fcgi.Get(env)
+			case "OPTIONS":
+				resp, err = fcgi.Options(env)
 			case "POST":
 				resp, err = fcgi.Post(env, r.Header.Get("Content-Type"), r.Body, contentLength)
 			case "PUT":

middleware/fastcgi/fcgiclient.go

@@ -416,7 +416,16 @@ func (this *FCGIClient) Head(p map[string]string) (resp *http.Response, err erro
 	return this.Request(p, nil)
 }
 
-// Get issues a Post request to the fcgi responder. with request body
+// Options issues an OPTIONS request to the fcgi responder.
+func (this *FCGIClient) Options(p map[string]string) (resp *http.Response, err error) {
+
+	p["REQUEST_METHOD"] = "OPTIONS"
+	p["CONTENT_LENGTH"] = "0"
+
+	return this.Request(p, nil)
+}
+
+// Post issues a POST request to the fcgi responder. with request body
 // in the format that bodyType specified
 func (this *FCGIClient) Post(p map[string]string, bodyType string, body io.Reader, l int) (resp *http.Response, err error) {