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https://issues.apache.org/jira/browse/WICKET-6289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15699893#comment-15699893
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ASF GitHub Bot commented on WICKET-6289:
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Github user duesenklipper commented on the issue:

    https://github.com/apache/wicket/pull/199
  
    It's not really needed for 1.5, no. I just first came across it in 1.5 
while helping a customer migrate a whole bunch of applications from 1.4 - 
currently on the way to 7.x. I don't mind this not getting in, it would simply 
be convenient for this.


> Autolinking adds onclick attribute to <img> tags
> ------------------------------------------------
>
>                 Key: WICKET-6289
>                 URL: https://issues.apache.org/jira/browse/WICKET-6289
>             Project: Wicket
>          Issue Type: Bug
>    Affects Versions: 7.4.0, 8.0.0-M2, 6.25.0, 1.5.17
>            Reporter: Carl-Eric Menzel
>            Assignee: Carl-Eric Menzel
>
> When the autolinker can't find the target of a src or href attribute, it 
> falls back to a default autocomponent, that supposedly leaves the tag 
> unchanged. Quoting AutolinkResolver:
> {code}
> if (autoComponent == null)
> {
>       // resolving didn't have the desired result or there was no delegate
>       // found; fallback on the default resolving which is a simple
>       // component that leaves the tag unchanged
>       autoComponent = new AutolinkExternalLink(componentId, 
> pathInfo.reference);
> }
> {code}
> ...except that AutolinkExternalLink is an ExternalLink which is an 
> AbstractLink which does change the original tag. Namely, when applied to 
> something that is not <a> it adds an onclick attribute. This leads to 
> something like the following:
> {code}
> <img src="does-not-exist.png" 
> onclick="window.location.href=&#039;does-not-exist.png&#039;;return false;"/>
> {code}
> ...which is clearly nonsensical. This can happen when the referenced image is 
> not in the classpath - it could either be missing, or it could be in the 
> webapp root somewhere, which can be the case for some legacy applications. 
> (This is how I came across this.)
> A simple fix appears to be to use a plain WebMarkupContainer in place of this 
> particular AutolinkExternalLink. All tests pass when I do that.
> This affects all versions from 1.5 on upward. I'll prepare a pull request.



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