[Demo website] Exception when dismiss dropdown

[nhducit]

Steps

• Visit this site http://react.semantic-ui.com/collections/menu#size
• click on language Dropdown
• click on page to dismiss dropdrown
• console show this error message

 Uncaught TypeError: a._dropdown.blur is not a function(…)

Expected Result

Console show error message

Actual Result

Console doesn't show error message

Version

0.61.7

Testcase

http://react.semantic-ui.com/collections/menu#size

[levithomason]

Duplicate #659

[levithomason]

Released in semantic-ui-react@0.64.4.