My XML file might look like this:

<webpage exportfrombaseurl="www.mycompany.com/en-us">
  <page id="1" relativeurl="/products/machine1.html">
    <description translatable="yes">Product description</description>
  </page>
</webpage>

The translator should be able to lookup the layout of the webpage.
The URL of the webpage is combination of the attributes "exportfrombaseurl" and "relativeurl".
We could create an XSLT preview where we concatenate base URL and relative URL.
The problem is that in Studio and in Trados Enterprise Online Editor, the link in such a preview cannot be clicked nor copied to the clipboard, so a translator would need to re-type the complete URL to see the original page layout on the live webpage, which he/she will probably not do.