Merge pull request #1373 from bago2k4/anchor-no-preview-fix

Do not check only for null targets or it will fail when it's undefined.

Author: rishijain

src/js/events.js

@@ -52,7 +52,7 @@
                 win = this.base.options.contentWindow,
                 doc = this.base.options.ownerDocument;
 
-            if (targets !== null) {
+            if (targets) {
                 targets = MediumEditor.util.isElement(targets) || [win, doc].indexOf(targets) > -1 ? [targets] : targets;
 
                 Array.prototype.forEach.call(targets, function (target) {