Last modified: 2014-10-24 14:45:54 UTC
To reproduce: - log in to http://en.wikipedia.beta.wmflabs.org/ - there should be link Sandbox at the top of the page - the link is not there - the link is there if you log in to http://en.wikipedia.org/
Related URL: https://gerrit.wikimedia.org/r/59054 (Gerrit Change Ic87e6f035c18288acd0271f7e4caa0c98ce49423)
That seems to be a gadget on the english wikipedia. The element has the id 'pt-mysandbox'. Searching the MediaWiki namespace gives me: http://en.wikipedia.org/wiki/MediaWiki:Gadget-mySandbox.js We could import that gadget to beta and then have it enabled on https://en.wikipedia.org/wiki/MediaWiki:Gadgets-definition Overall, we would need a way to sync the Gadgets automatically.