I can't copy input field value.
I tried this steps.
fiddle1 can copy text. (not load Zepto.js)
fiddle2 can't copy text. (load Zepto.js)
I think the reason lies with Zepto.
Do you know anything about that?
well, I'm not sure if I understand your problem or your attempted solution since you didn't post any code, but with Zepto (or jQuery) you get input values like so:
var userInput = $('#input_id').val()
// then you can do whatever with it, like writing it to an alert
alert(userInput)