diff --git a/docs/content/doc/usage/reverse-proxies.en-us.md b/docs/content/doc/usage/reverse-proxies.en-us.md
index 5f1e6685ec..9a2552b711 100644
--- a/docs/content/doc/usage/reverse-proxies.en-us.md
+++ b/docs/content/doc/usage/reverse-proxies.en-us.md
@@ -43,13 +43,15 @@ server {
     listen 80;
     server_name git.example.com;
 
-    location /git/ { # Note: Trailing slash
-        proxy_pass http://localhost:3000/; # Note: Trailing slash
+    # Note: Trailing slash
+    location /git/ { 
+        # Note: Trailing slash
+        proxy_pass http://localhost:3000/;
     }
 }
 ```
 
-Then set `[server] ROOT_URL = http://git.example.com/git/` in your configuration.
+Then you **MUST** set something like `[server] ROOT_URL = http://git.example.com/git/` correctly in your configuration.
 
 ## Nginx and serve static resources directly
 
@@ -139,11 +141,10 @@ If you want Apache HTTPD to serve your Gitea instance, you can add the following
     ProxyRequests off
     AllowEncodedSlashes NoDecode
     ProxyPass / http://localhost:3000/ nocanon
-    ProxyPassReverse / http://localhost:3000/
 </VirtualHost>
 ```
 
-Note: The following Apache HTTPD mods must be enabled: `proxy`, `proxy_http`
+Note: The following Apache HTTPD mods must be enabled: `proxy`, `proxy_http`.
 
 If you wish to use Let's Encrypt with webroot validation, add the line `ProxyPass /.well-known !` before `ProxyPass` to disable proxying these requests to Gitea.
 
@@ -161,13 +162,12 @@ In case you already have a site, and you want Gitea to share the domain name, yo
     AllowEncodedSlashes NoDecode
     # Note: no trailing slash after either /git or port
     ProxyPass /git http://localhost:3000 nocanon
-    ProxyPassReverse /git http://localhost:3000
 </VirtualHost>
 ```
 
-Then set `[server] ROOT_URL = http://git.example.com/git/` in your configuration.
+Then you **MUST** set something like `[server] ROOT_URL = http://git.example.com/git/` correctly in your configuration.
 
-Note: The following Apache HTTPD mods must be enabled: `proxy`, `proxy_http`
+Note: The following Apache HTTPD mods must be enabled: `proxy`, `proxy_http`.
 
 ## Caddy
 
diff --git a/docs/content/doc/usage/reverse-proxies.zh-cn.md b/docs/content/doc/usage/reverse-proxies.zh-cn.md
index b2425f8d5c..741f739dbd 100644
--- a/docs/content/doc/usage/reverse-proxies.zh-cn.md
+++ b/docs/content/doc/usage/reverse-proxies.zh-cn.md
@@ -37,13 +37,15 @@ server {
     listen 80;
     server_name git.example.com;
 
-    location /git/ { # Note: Trailing slash
-        proxy_pass http://localhost:3000/; # Note: Trailing slash
+    # 注意: /git/ 最后需要有一个路径符号
+    location /git/ { 
+        # 注意: 反向代理后端 URL 的最后需要有一个路径符号
+        proxy_pass http://localhost:3000/;
     }
 }
 ```
 
-然后在您的 Gitea 配置文件中添加 `[server] ROOT_URL = http://git.example.com/git/`。
+然后您**必须**在 Gitea 的配置文件中正确的添加类似 `[server] ROOT_URL = http://git.example.com/git/` 的配置项。
 
 ## 使用 Apache HTTPD 作为反向代理服务
 
@@ -56,7 +58,6 @@ server {
     ProxyRequests off
     AllowEncodedSlashes NoDecode
     ProxyPass / http://localhost:3000/ nocanon
-    ProxyPassReverse / http://localhost:3000/
 </VirtualHost>
 ```
 
@@ -74,13 +75,12 @@ server {
          Allow from all
     </Proxy>
     AllowEncodedSlashes NoDecode
-    # Note: no trailing slash after either /git or port
+    # 注意: 路径和 URL 后面都不要写路径符号 '/'
     ProxyPass /git http://localhost:3000 nocanon
-    ProxyPassReverse /git http://localhost:3000
 </VirtualHost>
 ```
 
-然后在您的 Gitea 配置文件中添加 `[server] ROOT_URL = http://git.example.com/git/`。
+然后您**必须**在 Gitea 的配置文件中正确的添加类似 `[server] ROOT_URL = http://git.example.com/git/` 的配置项。
 
 注：必须启用以下 Apache HTTPD 组件：`proxy`， `proxy_http`
 
@@ -100,8 +100,9 @@ git.example.com {
 
 ```
 git.example.com {
-    proxy /git/ http://localhost:3000 # Note: Trailing Slash after /git/
+    # 注意: 路径 /git/ 最后需要有路径符号
+    proxy /git/ http://localhost:3000
 }
 ```
 
-然后在您的 Gitea 配置文件中添加 `[server] ROOT_URL = http://git.example.com/git/`。
+然后您**必须**在 Gitea 的配置文件中正确的添加类似 `[server] ROOT_URL = http://git.example.com/git/` 的配置项。
diff --git a/routers/api/v1/api.go b/routers/api/v1/api.go
index d11bbf3c06..d915b76f78 100644
--- a/routers/api/v1/api.go
+++ b/routers/api/v1/api.go
@@ -576,7 +576,7 @@ func Routes(sessioner func(http.Handler) http.Handler) *web.Route {
 		// Miscellaneous
 		if setting.API.EnableSwagger {
 			m.Get("/swagger", func(ctx *context.APIContext) {
-				ctx.Redirect("/api/swagger")
+				ctx.Redirect(setting.AppSubURL + "/api/swagger")
 			})
 		}
 		m.Get("/version", misc.Version)
diff --git a/routers/api/v1/org/member.go b/routers/api/v1/org/member.go
index 97940d5925..a6f140c38f 100644
--- a/routers/api/v1/org/member.go
+++ b/routers/api/v1/org/member.go
@@ -159,7 +159,7 @@ func IsMember(ctx *context.APIContext) {
 		}
 	}
 
-	redirectURL := setting.AppURL + "api/v1/orgs/" + ctx.Org.Organization.Name + "/public_members/" + userToCheck.Name
+	redirectURL := setting.AppSubURL + "/api/v1/orgs/" + ctx.Org.Organization.Name + "/public_members/" + userToCheck.Name
 	ctx.Redirect(redirectURL, 302)
 }
 
diff --git a/routers/web/user/notification.go b/routers/web/user/notification.go
index ec3395cbc1..080ec4b582 100644
--- a/routers/web/user/notification.go
+++ b/routers/web/user/notification.go
@@ -8,6 +8,7 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"net/url"
 	"strings"
 
 	"code.gitea.io/gitea/models"
@@ -86,7 +87,7 @@ func getNotifications(c *context.Context) {
 	// redirect to last page if request page is more than total pages
 	pager := context.NewPagination(int(total), perPage, page, 5)
 	if pager.Paginater.Current() < page {
-		c.Redirect(fmt.Sprintf("/notifications?q=%s&page=%d", c.FormString("q"), pager.Paginater.Current()))
+		c.Redirect(fmt.Sprintf("%s/notifications?q=%s&page=%d", setting.AppSubURL, url.QueryEscape(c.FormString("q")), pager.Paginater.Current()))
 		return
 	}