<pre>Note that xhtml errors can result in real bugs. For
example have a look at the report list:

When logged in, this page contains links &#91;copy&#93; after each
report. This link works fine on Firefox, but it doesn't work
on Internet Explorer, and this time IE is not to blame ;-)

The suggested patch makes the &#91;copy&#93; link on
the reportlist page work on both Firefox and Internet Explorer.

The reason is that the link has the form:

But Internet Explorer interprets that as:

as &amp;copy is short for the copyright sign (the ';'
is not mandatory in html5).

See:
and note that a "copy" named character reference exists without a final ';'.
</pre>