When privoxy filters XML pages (like http://cnx.org/content/m11948/latest/\), it inserts the
<script>function PrivoxyWindowOpen(a, b, c){return(window.open(a, b, c));}</script>
*after* the closing xml root tag. This causes the XML parsing to fail and Firefox refuses to show the page ("XML Parsing Error: junk after document element
Location: http://cnx.org/content/m11948/latest/
Line Number 4080, Column 8:").
Thanks for the report.
The JavaScript filters are deprecated and disabled by default.
On of the reasons is that some of them don't handle XML
properly, the other (more important one) is that they are
unreliable.
If you decide to enable them anyway, you could prevent the
problem you're seeing by disabling them for some pages based
on the Content-Type header.
I would recommend that you simply disable them, though.
Your browser should be a lot better at filtering JavaScript.
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