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https://issues.apache.org/jira/browse/WICKET-6307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15827730#comment-15827730
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Sven Meier commented on WICKET-6307:
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I'd prefer `if (typeof ff.onsubmit === "function")`.
> SubmitLink does not work in Chrome "ff.onsubmit is not a function"
> ------------------------------------------------------------------
>
> Key: WICKET-6307
> URL: https://issues.apache.org/jira/browse/WICKET-6307
> Project: Wicket
> Issue Type: Bug
> Affects Versions: 7.3.0, 7.6.0
> Environment: Windows
> Reporter: Robert Handschmann
> Assignee: Sven Meier
>
> Submitting a form with a SubmitLink doesn't work in Google Chrome because of
> the JavaScript error "ff.onsubmit is not a function".
> The generated html is like
> {noformat}
> <form id="memberGetMemberForm" class="standard_form" role="form"
> wicketpath="memberGetMemberForm" method="post"
> action="./?-1.IFormSubmitListener-memberGetMemberForm"><div
> style="width:0px;height:0px;position:absolute;left:-100px;top:-100px;overflow:hidden"><input
> type="hidden" name="memberGetMemberForm_hf_0" id="memberGetMemberForm_hf_0"
> /></div>
> ...
> <a href="javascript:;" id="mgmSend" wicketpath="memberGetMemberForm_mgmSend"
> onclick="var e=document.getElementById('memberGetMemberForm_hf_0');
> e.name='mgmSend'; e.value='x';var
> f=document.getElementById('memberGetMemberForm');var ff=f;if (ff.onsubmit !=
> undefined) { if (ff.onsubmit()==false) return false;
> }f.submit();e.value='';e.name='';return false;"> </a>
> ...
> </form>
> {noformat}
> Error in Chrome console:
> {noformat}
> (index):58 Uncaught TypeError: ff.onsubmit is not a function
> at HTMLAnchorElement.onclick ((index):58)
> onclick @ (index):58
> {noformat}
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