Merge pull request #606 from prometheus/add-delete-to-cors

Add DELETE to acceptable cors methods

api.go

@@ -54,7 +54,7 @@ func init() {
 
 var corsHeaders = map[string]string{
 	"Access-Control-Allow-Headers":  "Accept, Authorization, Content-Type, Origin",
-	"Access-Control-Allow-Methods":  "GET, OPTIONS",
+	"Access-Control-Allow-Methods":  "GET, DELETE, OPTIONS",
 	"Access-Control-Allow-Origin":   "*",
 	"Access-Control-Expose-Headers": "Date",
 }