'Accept' attribute of input element is not working

Question

I came across a browse file dialog-control tag in html and the tag was

Answer 1

according to the w3schools (http://www.w3schools.com/TAGS/att_input_accept.asp), the 'accept' attribute is not properly supported by any of the major browsers. The filter inside the file browser dialog will not work.

You could use a javascript validation on the form onsubmit event to verify if the file type is correct, returning false otherwise.