diff --git a/README.md b/README.md
index 758cc81..9330af2 100644
--- a/README.md
+++ b/README.md
@@ -132,8 +132,8 @@ server {
 }
 ```
 
-The parameter 'http-proxy-redir-url' in rttys.conf can also be configured
-by setting a new HTTP header 'HttpProxyRedir' in nginx.
+The parameter 'http-proxy-redir-url' and 'http-proxy-redir-domain' in rttys.conf can also be configured
+by setting new HTTP headers in nginx.
 
 ```
 server {
@@ -150,6 +150,7 @@ server {
 
     location /web/ {
         proxy_set_header HttpProxyRedir http://web.your-server.com;
+        proxy_set_header HttpProxyRedirDomain .your-server.com
         proxy_pass http://127.0.0.1:5913;
     }
 
diff --git a/README_ZH.md b/README_ZH.md
index 402dc5b..7c243fe 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -130,8 +130,8 @@ server {
 }
 ```
 
-在 rttys.conf 中的参数 http-proxy-redir-url 也可以通过在 nginx 中设置一个新
-的 HTTP header HttpProxyRedir 来配置.
+在 rttys.conf 中的参数 http-proxy-redir-url 和 http-proxy-redir-domain 也可以通过在 nginx 中设置新
+的 HTTP headers 来配置.
 
 ```
 server {
@@ -148,6 +148,7 @@ server {
 
     location /web/ {
         proxy_set_header HttpProxyRedir http://web.your-server.com;
+        proxy_set_header HttpProxyRedirDomain .your-server.com
         proxy_pass http://127.0.0.1:5913;
     }
 
diff --git a/http.go b/http.go
index 6bd81cf..4ef81c8 100644
--- a/http.go
+++ b/http.go
@@ -368,9 +368,15 @@ func httpProxyRedirect(br *broker, c *gin.Context) {
 
 	httpProxySessions.Store(sid, make(chan struct{}))
 
-	domain := cfg.HttpProxyRedirDomain
-
-	log.Debug().Msgf("set cookie domain: %s", domain)
+	domain := c.Request.Header.Get("HttpProxyRedirDomain")
+	if domain == "" {
+		domain = cfg.HttpProxyRedirDomain
+		if domain != "" {
+			log.Debug().Msgf("set cookie domain from config: %s", domain)
+		}
+	} else {
+		log.Debug().Msgf("set cookie domain from HTTP header: %s", domain)
+	}
 
 	c.SetCookie("rtty-http-sid", sid, 0, "", domain, false, true)
 	c.SetCookie("rtty-http-devid", devid, 0, "", domain, false, true)