Add hasOwnProperty check

2 years ago · 565c42e0ff
parent 1c656d5712
commit 565c42e0ff
1 changed files with 3 additions and 1 deletions
--- a/src/js/easymde.js
+++ b/src/js/easymde.js
@ -239,7 +239,9 @@ function createToolbarButton(options, enableActions, enableTooltips, shortcuts,

    if (options.attributes) {
        for (var attribute in options.attributes) {
-            el.setAttribute(attribute, options.attributes[attribute]);
+            if (Object.prototype.hasOwnProperty.call(options.attributes, attribute)) {
+                el.setAttribute(attribute, options.attributes[attribute]);
+            }
        }
    }