AJAX file upload fails in IE8 due to Wicket.Ajax.handleMultipart() sniffing
wicket:body tags as an HTML body element when running Wicket in development mode
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Key: WICKET-3075
URL: https://issues.apache.org/jira/browse/WICKET-3075
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.4.10
Reporter: Liam Clarke-Hutchinson
Priority: Minor
Attachments: bodySniffing.patch, reproduction_body_bug.zip
To reproduce:
1. Run provided quickstart project
2. Open in IE8.
3. Upload a file.
Expected behaviour:
File is uploaded, and some basic information about uploaded file is displayed.
Observed behaviour:
IllegalStateException is thrown.
The IllegalStateException is being thrown because the form is being submitted
as a normal form. This is because the JS in handleMultipart that traverses up
the DOM looking for the actual form is checking tagnames, and in IE8, the
tagName of a <wicket:body> is body, so as soon as it hits a wicket:body, it
returns false. I've provided a patch that checks for identity against
document.body - an alternative is to check that the form.tagUrn is empty, as it
would be for a normal HTML element.
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