Support for Drupal 7 is ending on 5 January 2025—it’s time to migrate to Drupal 10! Learn about the many benefits of Drupal 10 and find migration tools in our resource center.
The $rdf_namespaces variable is not found in the default maintenance-page.tpl, but Zen has it and it causes PHP notices when the maintenance page is viewed:
Notice: Undefined variable: rdf_namespaces in include() (line 17 of sites/all/themes/zen/templates/maintenance-page.tpl.php).
This variable needs to be removed.
First reported here: http://drupal.org/node/1179128#comment-5221910
Comments
Comment #1
JohnAlbinThis variable is only in 7.x-5.x, not the 7.x-3.x branch.
Fixed. http://drupalcode.org/project/zen.git/commitdiff/06af06d
Comment #2.0
(not verified) CreditAttribution: commentedAdd link to original bug report.