feat: enable multiple domains to apply same rule

handlers/proxy.go

@@ -172,7 +172,10 @@ func applyRules(domain string, path string, body string) string {
 	}
 
 	for _, rule := range rulesSet {
-		if rule.Domain != domain {
+		// rule.Domain can be multiple domains delimited by "|"
+		domains := strings.Split(rule.Domain, "|")
+		for _, ruleDomain := range domains {
+			if ruleDomain != domain {
 				continue
 			}
 			if len(rule.Paths) > 0 && !StringInSlice(path, rule.Paths) {
@@ -202,6 +205,7 @@ func applyRules(domain string, path string, body string) string {
 				}
 			}
 		}
+	}
 
 	return body
 }