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https://issues.apache.org/jira/browse/WICKET-5132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13900422#comment-13900422
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Martin Grigorov commented on WICKET-5132:
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Can you identify which code exactly is slow in IE11 ?
I see Wicket uses jQuery.text() in three other places. I can send you patched
wicket-ajax-jquery.js that uses the same solution as for the above problem so
you can test it locally ?
> Evaluation of returned data (which includes alot of javascript) very slow
> after ajax call in IE10.
> --------------------------------------------------------------------------------------------------
>
> Key: WICKET-5132
> URL: https://issues.apache.org/jira/browse/WICKET-5132
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 6.0.0
> Environment: IE10
> Reporter: Bas Veenema
> Assignee: Martin Grigorov
> Labels: javascript, performance
> Fix For: 6.7.0
>
> Attachments: response_script.txt
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> We're using ajax to update a treetable. In IE10, when the ajax call returns
> the data, which contains alot of javascript code, processEvaluation in
> wicket-ajax-jquery.js stalls on var text = jQuery(node).text();
> In jQuery procedure Sizzle.getText is called, which eventually returns
> property elem.textContent. In IE10 this last statement takes about 26 seconds
> for our case while the same statement in chrome takes about 6 ms.
> It seems strange that IE10 takes this long to return the textContent of a
> node, but why is this necessary in the first place?
> The purpose of var text = jQuery(node).text() would be to get the text of the
> node. I think it would suffice to state var text =
> node.childNodes[0].nodeValue instead of var text = Query(node).text(),
> because the text is in the node itself, and it's not necessary to get the
> text from its descendants, because it has no descendants.
> In our case this modification improves the duration from 25915 ms to 8 ms in
> IE10.
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