diff --git a/reference/html/appendix.html b/reference/html/appendix.html
index 48b9d1fd..cca7a393 100644
--- a/reference/html/appendix.html
+++ b/reference/html/appendix.html
@@ -166,7 +166,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.discovery.locator.filters</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.discovery.locator.include-expression</p></td>
@@ -181,7 +181,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.discovery.locator.predicates</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.discovery.locator.route-id-prefix</p></td>
@@ -206,12 +206,12 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.remove-hop-by-hop.headers</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.remove-hop-by-hop.order</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.request-rate-limiter.deny-empty-key</p></td>
@@ -226,47 +226,47 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.content-security-policy</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">default-src 'self' https:; font-src 'self' https: data:; img-src 'self' https: data:; object-src 'none'; script-src https:; style-src 'self' https: 'unsafe-inline'</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.content-type-options</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">nosniff</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.disable</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.download-options</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">noopen</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.frame-options</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">DENY</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.permitted-cross-domain-policies</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">none</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.referrer-policy</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">no-referrer</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.strict-transport-security</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">max-age=631138519</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.filter.secure-headers.xss-protection-header</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">1 ; mode=block</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.forwarded.enabled</p></td>
@@ -281,7 +281,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.globalcors.cors-configurations</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.httpclient.connect-timeout</p></td>
@@ -436,7 +436,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.loadbalancer.use404</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">false</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.metrics.enabled</p></td>
@@ -456,7 +456,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.redis-rate-limiter.config</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.redis-rate-limiter.include-headers</p></td>
@@ -491,7 +491,7 @@ Also, you can define your own properties.
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.streaming-media-types</p></td>
 <td class="tableblock halign-left valign-top"></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">spring.cloud.gateway.x-forwarded.enabled</p></td>