maybe it's too late, but this problem is still active since there is no yet an official SDK that offer native web application solution. the only official solution is a java applet which is obsolete by all modern browsers.
I have a workaround using a chrome extension if you are interested.
as a summary:
you will create a desktop application that while launching, it read emirates ID and copy the data into the windows clipboard and close.
You will register that application in chrome.
you will create a chrome extension to call that application, and read the clipboard, which contains the data, and push it to the web page.
I have the full solution available on github
, so feel free to check it.