closes https://github.com/NodeBB/NodeBB/pull/3250

src/middleware/middleware.js

@@ -186,6 +186,9 @@ middleware.buildHeader = function(req, res, next) {
 			},
 			footer: function(next) {
 				app.render('footer', {loggedIn: (req.user ? parseInt(req.user.uid, 10) !== 0 : false)}, next);
+			},
+			plugins: function(next) {
+				plugins.fireHook('filter:middleware.buildHeader', {req: req, locals: res.locals}, next);
 			}
 		}, function(err, results) {
 			if (err) {