Last modified: 2014-10-04 13:50:07 UTC
If user won't fill <inputbox> type=create and hits the button, it opens the Main page for editing (or view-source) due to empty title= param in URL.
Guess some Javascript to grey out submit button until something is typed would make sense.
Change 120487 had a related patch set uploaded by 01tonythomas: Adding a JS Class to inputBox to grey out Submit button. https://gerrit.wikimedia.org/r/120487
Change 120487 merged by jenkins-bot: Adding a JS Class to inputBox to grey out Submit button. https://gerrit.wikimedia.org/r/120487