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https://issues.apache.org/jira/browse/WICKET-6533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358062#comment-16358062
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Maxim Solodovnik commented on WICKET-6533:
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I guess this Unicode char need to be escaped here
{{https://github.com/apache/wicket/blob/master/wicket-util/src/main/java/org/apache/wicket/util/string/Strings.java#L376}}
But is not escaped ....
Would in be OK to enlarge current {{non-printable and not whitespace}} list?
According to this: https://www.fileformat.info/info/unicode/char/fffe/index.htm
this is {{Unicode Noncharacter}}, seems to also be non-printable ....
WDYT?
> Error while parsing xml using AjaxButton
> ----------------------------------------
>
> Key: WICKET-6533
> URL: https://issues.apache.org/jira/browse/WICKET-6533
> Project: Wicket
> Issue Type: Bug
> Affects Versions: 8.0.0-M8
> Reporter: Łukasz Ludwa
> Priority: Major
> Attachments: showcase.zip, showcase_simplified.zip
>
>
> Problem is caused when refreshing markup using Ajax and in data is special
> character (�).
> Error occurs in my project everywhere when refreshing markup using Ajax where
> this special character occurs.
> I create and attach quickstart project which reproduces this problem in
> simple way: changing markup through hiding/showing TextField by ajax button.
>
> Steps to reproduce problem:
> 1. Download and run attached quickstart project
> 2. Enter to TextField symbol presented under "Insert this string for
> error..." label:
> 3) Click „Regular submit” twice (this causes component to refresh, but
> doesn’t cause error)
> 4) Now click „Ajax submit” twice – this causes button to not refresh markup
> and show error:
>
> {code:java}
> ERROR: Wicket.Ajax.Call.failure: Error while parsing response: Error: Invalid
> XML: <?xml version="1.0" encoding="UTF-8"?><ajax-response><component
> id="field3" ><![CDATA[<input value="" name="field"
> id="field3"/>]]></component></ajax-response>{code}
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