(wicket) branch master updated: Make HTML spec compliant (#1458)

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bitstorm pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/wicket.git


The following commit(s) were added to refs/heads/master by this push:
     new 139bc13baf Make <wicket:header-items/> HTML spec compliant (#1458)
139bc13baf is described below

commit 139bc13baf3ebf802e7f9badffb833ea36242700
Author: Andreas Svanberg <an...@mensa.se>
AuthorDate: Mon Jun 8 12:08:20 2026 +0200

    Make <wicket:header-items/> HTML spec compliant (#1458)
    
    According to the [HTML specification for `<meta>` element](https://html.spec.whatwg.org/multipage/semantics.html#the-meta-element), a `<meta>` tag with the `name` attribute specified must also specify `content`.
    
    > If either name, http-equiv, or itemprop is specified, then the content attribute must also be specified. Otherwise, it must be omitted.
    
    Since `<wicket:header-items/>` is often placed in a base class for pages it means that no pages in the application will pass HTML validation.
---
 .../apache/wicket/markup/html/internal/HtmlHeaderItemsContainer.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wicket-core/src/main/java/org/apache/wicket/markup/html/internal/HtmlHeaderItemsContainer.java b/wicket-core/src/main/java/org/apache/wicket/markup/html/internal/HtmlHeaderItemsContainer.java
index 4249c6a2b1..d6758cd712 100644
--- a/wicket-core/src/main/java/org/apache/wicket/markup/html/internal/HtmlHeaderItemsContainer.java
+++ b/wicket-core/src/main/java/org/apache/wicket/markup/html/internal/HtmlHeaderItemsContainer.java
@@ -44,7 +44,7 @@ public class HtmlHeaderItemsContainer extends HtmlHeaderContainer
 	protected void onAfterRender() {
 		super.onAfterRender();
 		final Response webResponse = getResponse();
-		webResponse.write("<meta name=\"wicket.header.items\"/>");
+		webResponse.write("<meta name=\"wicket.header.items\" content=\"\"/>");
 	}
 
 	@Override