Add 'filter:middleware.renderHeader' hook

src/middleware/middleware.js

@@ -286,7 +286,9 @@ middleware.renderHeader = function(req, res, callback) {
 		templateValues.template = {name: res.locals.template};
 		templateValues.template[res.locals.template] = true;
 
-		app.render('header', templateValues, callback);
+		plugins.fireHook('filter:middleware.renderHeader', {templateValues: templateValues, req: req, res: res}, function(err, data) {
+            		app.render('header', data.templateValues, callback);
+        	});
 	});
 };
 
@@ -495,4 +497,4 @@ module.exports = function(webserver) {
 	middleware.admin = require('./admin')(webserver);
 
 	return middleware;
-};
+};