Allow HTML inside tag prefix/suffix

closes #2123
- Return hbs.Safestring
- Manually escape joined tags
- Added test

core/server/helpers/index.js

@@ -181,10 +181,10 @@ coreHelpers.tags = function (options) {
         tagNames = _.pluck(this.tags, 'name');
 
     if (tagNames.length) {
-        output = prefix + tagNames.join(separator) + suffix;
+        output = prefix + _.escape(tagNames.join(separator)) + suffix;
     }
 
-    return output;
+    return new hbs.handlebars.SafeString(output);
 };
 
 // ### Content Helper

core/test/unit/server_helpers_index_spec.js

@@ -640,6 +640,18 @@ describe('Core Helpers', function () {
             String(rendered).should.equal('on haunted, ghost forever');
         });
 
+        it('can add a prefix and suffix with HTML', function () {
+            var tags = [{name: 'haunted'}, {name: 'ghost'}],
+                rendered = handlebars.helpers.tags.call(
+                    {tags: tags},
+                    {"hash": {suffix: ' •', prefix: '… '}}
+                );
+
+            should.exist(rendered);
+
+            String(rendered).should.equal('… haunted, ghost •');
+        });
+
         it('does not add prefix or suffix if no tags exist', function () {
             var rendered = handlebars.helpers.tags.call(
                     {},