Hi,

We have many places in our JavaScript code where URLs are computed from 
different fragments. The most common use case is appending query string 
parameters to an existing URL:

window.docgeturl + '?xpage=xpart&vm=' + extraTemplate

This code works well in servlet mode but it's almost impossible to 
integrate in portlet mode because portlet URLs are special 
http://dev.xwiki.org/xwiki/bin/view/Drafts/PortletIntegration#HPortletURLs 
. You can't add parameters to a portlet URL by simply appending them to 
the query string.

There are two scenarios (for portlet mode):

(1) Either window.docgeturl is a portlet URL written on the server when 
the page was rendered and in this case parameters appended to the query 
string will be ignored

(2) or window.docgeturl is a servlet URL, but we have to rewrite on the 
server the computed URL into a portlet URL -- impossible

What if we avoid computing URLs in JavaScript code and instead get the 
URLs from HTML elements (e.g. anchors or forms)?

<a id="commentsResourceId" href="$doc.getURL('get', 
'?xpage=xpart&vm=commentsinline.vm')" class="hidden">Comments</a>
...
$(commentsResourceId).href

I'm interested to know if this would help others too.

Thanks,
Marius
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