[WICKET-6617] Header contribution ignore <wicket:header-items/> - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 8.2.0
Fix Version/s: 8.3.0, 9.0.0-M1
Component/s: wicket-core
Labels:
None

Description

Components added via AJAX and contributing to <head> using @Override renderHead ignores <wicket:header-items/> if any

Here is the example:
Imaging you have following markup:

<html>
  <head>
    <wicket:header-items/>
    <title>Hello</title>
  </head>
  <body>
      ........
  </body>
<html>

In your java code you replacing component A with component B on the page via AJAX
Component B contributing to <head> as follows:

	@Override
	public void renderHead(IHeaderResponse response) {
		super.renderHead(response);
		response.render(JavaScriptHeaderItem.forReference(new JavaScriptResourceReference(B.class, "some.js")));
	}

As developer I would expect additional JS/CSS files (or any other header resources) will be appended before <title> tag since I have placed <wicket:header-items/> tag

Currently only initial header resources will take <wicket:header-items/> into account