example broken - https needed

[heinrichmartin]

FF won't let me test your example as github redirects to https, but jquery code is requested over http.
To be fixed in https://romb.github.io/jquery-dialogextend/example.html.
Further reading at https://www.paulirish.com/2010/the-protocol-relative-url/.

[heinrichmartin]

... and when you touch that file: the last <div> in the <form> is not properly closed at line 226.