BUG: fix missing cors-enable annotation treatment

Author: ivanmatmati

controller/annotations/annotations.go

@@ -90,6 +90,8 @@ func Frontend(i *store.Ingress, r *rules.Rules, m maps.MapFiles) []Annotation {
 		reqAuth.NewAnnotation("auth-secret"),
 		reqCapture.NewAnnotation("request-capture"),
 		reqCapture.NewAnnotation("request-capture-len"),
+		// always put cors-enable annotation before any oth
+		resSetCORS.NewAnnotation("cors-enable"),
 		resSetCORS.NewAnnotation("cors-allow-origin"),
 		resSetCORS.NewAnnotation("cors-allow-method"),
 		resSetCORS.NewAnnotation("cors-allow-headers"),

controller/annotations/ingress/resSetCORS.go

@@ -10,7 +10,7 @@ import (
 	"github.com/haproxytech/kubernetes-ingress/controller/utils"
 )
 
-const corsVarName = "cors-origin"
+const corsVarName = "cors_origin"
 
 type ResSetCORS struct {
 	rules   *rules.Rules