The beta cluster is using bits and pieces from the production cluster. Please create a beta-centered bits.wikimedia.beta.wmflabs.org so that images like the search icon and "Powered by MediaWiki" icon would not display 404 errors when loading wikis in the beta cluster.
Version: unspecified
Severity: critical
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=61784