Empty class attribute in navigation bars

[eblot]

Here is the rendered XHTML code for the metanav bar:

<ul>
  <li class="first">logged in as joeuser</li>
  <li class=""><a href="/trunk/logout">Logout</a></li>
  <li class=""><a href="/trunk/prefs">Preferences</a></li>
  <li class=""><a href="/trunk/wiki/TracGuide">Help/Guide</a></li>
  <li class="last"><a href="/trunk/about">About Trac</a></li>
</ul>

Although empty class selectors are valid in XHTML/strict, it prevents Trac from generating valid XHTML+SVG pages, i.e. documents that follow ​http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd

When such document type is used, the w3 validator fails on all occurences of

  <li class="">

because of the empty class.

This is an issue with Trac plugins that want to generate valid XHTML document with inlined SVG data.

[mgood]

Hrm, it would appear that the W3 validator for XHTML/Strict is not really that strict, since it validates the empty class attributes, though they do not conform to the DTD.

[eblot]

Replying to mgood:

Hrm, it would appear that the W3 validator for XHTML/Strict is not really that strict, since it validates the empty class attributes, though they do not conform to the DTD.

Oh ok, so this is more a small issue than an enhancement.

[cmlenz]

Should be fixed in [4667].