Automated tests began failing on 8 February, with what seems like a failure to launch MMV on beta labs at all. https://wmf.ci.cloudbees.com/job/MultimediaViewer-en.wikipedia.beta.wmflabs.org-linux-firefox/

http://en.wikipedia.beta.wmflabs.org/wiki/Lightbox_demo

Today the test fails when run from a local machine against beta labs because the identifiers for the images in the Lighbox_demo page seem to have gone missing. The test fails because there is no "div(:mmv_image_div, class: "mlb-image")" on the source page, but looking in Firebug, all of the identifiers "/mlb/" for div, span and p tags seem to have gone missing from the source page.

The Lightbox demo itself seems to function correctly.

Version: unspecified
Severity: normal