Last modified: 2014-07-26 03:50:50 UTC
I cannot create v:cs:user:Juandev/haf.js with no text (means blank page). Tested on both FF and GChrome. I think it should work, dont see the reason, why not.
This is currently intentional, although I don't know what was the reasoning to implement it. Related: bug 57238.
Change 145899 had a related patch set uploaded by Florianschmidtwelzow: Enable the creation of empty pages https://gerrit.wikimedia.org/r/145899
Change 145899 merged by jenkins-bot: Enable the creation of empty pages https://gerrit.wikimedia.org/r/145899