Gather loads skins.minerva.scripts in Vector. This should never happen.
In e.g. https://en.wikipedia.org/wiki/Special:Gather/all/recent , it's not possible to place the cursor into the search box on top right (by either clicking on it or via the keyboard shortcut Alt-Shift-F / CTRL-Option-F).
Reproduced with current Chromium/Chrome versions under Linux and OS X, both when logged in and logged out.
It seems to work fine in Firefox, though, both under Linux and OS X.
Note: This may be due to an issue in MobileFrontend's MobileWebUIClickTracking code which should not be running in desktop.