whowrotethiscode opened a new issue, #1487:
URL: https://github.com/apache/wicket/issues/1487
Hello,
When a `Panel` contains the following code and is rendered via AJAX
then the AJAX response processing in the client browser will hang
indefinitely:
```java
@Override
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
response.render(StringHeaderItem.forString(
"<link rel=\"stylesheet/less\" type=\"text/css\"
href=\"demo.less\" media=\"all\"/>"));
}
```
It seems the non-standard `rel="stylesheet/less"`
causes `wicket-ajax-jquery.js` to wait for an `onload` event which never
happens.
The above code worked OK in Wicket version `8`
but it now hangs after upgrading to Wicket version `10`.
Please see this minimal reproducible example:
[ajax-hang-demo.zip](https://github.com/user-attachments/files/28873396/ajax-hang-demo.zip)
Thanks to the Wicket team.
#### Environment
- Hangs in Wicket version `10.9.0`
- Worked OK in Wicket `8.18.0`
- Reproducible in all modern browsers
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