diff --git a/Environment-Variables.md b/Environment-Variables.md
index 4b31ace..ec86ec2 100644
--- a/Environment-Variables.md
+++ b/Environment-Variables.md
@@ -1,6 +1,6 @@
-## Server environment variables
+## Server Environment Variables
 
-| Environment variable                       | Server argument            | Description                                                           |    Default |
+| Environment Variable                       | Server Argument            | Description                                                           |    Default |
 | ------------------------------------------ | -------------------------- | --------------------------------------------------------------------- | ---------: |
 | `DATA_DIR`                                 | `data-dir`                 | Set the directory where the data should be stored (could be relative) |  `./data/` |
 | `UPTIME_KUMA_HOST` or `HOST`               | `host`                     | Host to bind to, could be an ip.                                      |       `::` |
@@ -8,13 +8,15 @@
 | `UPTIME_KUMA_SSL_KEY` or `SSL_KEY`         | `ssl-key`                  | Path to SSL key                                                       |            |
 | `UPTIME_KUMA_SSL_CERT` or `SSL_CERT`       | `ssl-cert`                 | Path to SSL certificate                                               |            |
 | `UPTIME_KUMA_CLOUDFLARED_TOKEN`        | `cloudflared-token`                 | Cloudflare Tunnel Token (Available in 1.14.0)                                              |            |
+| `UPTIME_KUMA_DISABLE_FRAME_SAMEORIGIN`     | `disable-frame-sameorigin` | By default, Uptime Kuma is not allowed in iframe if the domain name is not the same as the parent. It protects your Uptime Kuma to be a phishing website. If you don't need this protection, you can set it to `true` | `false` |
 | `NODE_EXTRA_CA_CERTS`        |                  | Add your self-signed ca certs. (e.g. /cert/path/CAcert.pem) [Read more](https://github.com/louislam/uptime-kuma/issues/1380)                                            |            |
 | `NODE_TLS_REJECT_UNAUTHORIZED`        |                  | Ignore all TLS errors                                      |    `0`        |
+| `NODE_OPTIONS` | | Set it to `--insecure-http-parser`, if you encountered error `Invalid header value char` when your website using WAF | |
 
 
-## Docker specific environment variables
+## Docker Specific Environment Variables
 
-| Environment variable | Description                         | Default |
+| Environment Variable | Description                         | Default |
 | -------------------- | ----------------------------------- | ------: |
 | `PUID`               | User id to access the data storage  |  `1000` |
 | `PGID`               | Group id to access the data storage |  `1000` |
@@ -24,7 +26,6 @@
 | Environment variable                       | Server argument            | Description                                                           |    Default |
 | ------------------------------------------ | -------------------------- | --------------------------------------------------------------------- | ---------: |
 | `NODE_ENV`                                 |                            | Set the NodeJS environment flag                                       | production |
-| `UPTIME_KUMA_DISABLE_FRAME_SAMEORIGIN`     | `disable-frame-sameorigin` | Prevent kuma from being opened by an IFrame from other hosts          |    `false` |
 | `UPTIME_KUMA_LOG_RESPONSE_BODY_MONITOR_ID` |                            | Monitor ID - If provided, it will output the monitor's response to your console                              |            |
 | `UPTIME_KUMA_HIDE_LOG` |                            | (1.15.0) Examples: debug_monitor,info_monitor,debug_cert,warn_monitor                              |            |
 | `SQL_LOG` | | Set `1` to enable | | |