doc: FAQ on minio through nginx (cloudreve/cloudreve#2397)

Author: HFO4

en/usage/storage/minio.md

@@ -42,3 +42,16 @@ Check `Settings` -> `Filesystem` -> `Upload session TTL (seconds)`, its value sh
 2. Check if there is an external WAF firewall blocking the upload request.
 
 :::
+
+::: details Using a MinIO endpoint after reverse proxy, I cannot upload or perform any file operations.
+
+1. If the reverse proxy endpoint contains a port, when configuring Nginx, set `proxy_set_header` to `$http_host`:
+
+   ```nginx
+   proxy_set_header Host $host; # [!code --]
+   proxy_set_header Host $http_host; # [!code ++]
+   ```
+
+2. If the file creation and deletion operations are OK, but you cannot upload files from the Web client, try adding `proxy_cache_convert_head off;` to the Nginx reverse proxy configuration.
+
+:::

zh/usage/storage/minio.md

@@ -42,3 +42,16 @@ MinIO 不需要配置跨域策略，点击 `我已自行设置` 跳过跨域策
 2. 检查是否有外部 WAF 防火墙拦截了上传请求。
 
 :::
+
+::: details 使用 Nginx 反代后的 MinIO 端点，无法上传或进行任何文件操作。
+
+1. 如果你的反代后的端点包含了端口号，在配置 Nginx 时，请将 `proxy_set_header` 设定为 `$http_host`:
+
+   ```nginx
+   proxy_set_header Host $host; # [!code --]
+   proxy_set_header Host $http_host; # [!code ++]
+   ```
+
+2. 如果文件新建、删除操作正常，但是无法从 Web 端上传文件，请尝试在 Nginx 反代配置中加入 `proxy_cache_convert_head off;`。
+
+:::