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https://issues.apache.org/jira/browse/TAP5-638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13055236#comment-13055236
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Taha Hafeez commented on TAP5-638:
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The support for ajax based
upload(http://www.w3.org/TR/XMLHttpRequest2/#xmlhttprequestupload) is new and
is only supported by a few browsers. This feature requires a separate ajax
request to the server and can't be part of the form submission. Also there has
to be a fallback to iframe based form submission in case the browser does not
support this feature.
I have written an ajax-upload component
(https://github.com/tawus/tawus/tree/master/tawus-ajaxupload). If somebody
finds it useful, I can convert it into a patch for tapestry-upload module.
> Support for uploading files using AJAX
> --------------------------------------
>
> Key: TAP5-638
> URL: https://issues.apache.org/jira/browse/TAP5-638
> Project: Tapestry 5
> Issue Type: Improvement
> Components: tapestry-upload
> Reporter: Hugo Palma
>
> If the upload component is included on a form that does a partial update(has
> the zone parameter set) the value property isn't updated with the
> UploadedFile instance.
> So it seems that this component upload doesn't support ajax. It would be
> great if it was possible to upload a file using AJAX.
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