diff --git a/source b/source
index 58a37478d64..e966964bf91 100644
--- a/source
+++ b/source
@@ -52313,7 +52313,7 @@ form.method === input; // => true</code></pre>
   </div>
 
 
-  <h5>Form submission</h5>
+  <h5>Form submission attributes</h5>
 
   <p><dfn>Attributes for form submission</dfn> can be specified both on <code>form</code> elements
   and on <span data-x="concept-submit-button">submit buttons</span> (elements that represent buttons
@@ -55163,7 +55163,6 @@ interface <dfn>ValidityState</dfn> {
   </div>
 
 
-<!--ADD-TOPIC:Security-->
   <h5 id="security-forms">Security</h5>
 
   <p id="security-0">Servers should not rely on client-side validation. Client-side validation can
@@ -55171,12 +55170,11 @@ interface <dfn>ValidityState</dfn> {
   agents or automated tools that do not implement these features. The constraint validation features
   are only intended to improve the user experience, not to provide any kind of security
   mechanism.</p>
-<!--REMOVE-TOPIC:Security-->
 
 
 
 
-  <h4><dfn>Form submission</dfn></h4>
+  <h4 id="form-submission-2"><dfn id="form-submission">Form submission</dfn></h4>
 
   <div w-nodev>