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  • im sorry. it's not browser. what i mean is file browse panel. which could be opened when we click on <input type='file'/> element Commented Jul 13, 2012 at 2:34
  • 4
    No worries. Unfortunately, there is no cancel event. The only thing I've come up with that would be helpful is that if nothing is selected, file.value.length will be 0. Unfortunately, you have nothing to detect when the user exits the modal except for onchange, which as you point out only fires when a file is selected. Commented Jul 13, 2012 at 5:17
  • unfortunately the value doesnt change between before and after the file panel popup. so even with setinterval we cannot catch the popup. do you think there is any other values would be changed right after the panel popup? Commented Jul 13, 2012 at 7:40
  • I tried a few, all of the mouse props, onmousedown, onmouseup, over, out, etc. All of them are done before the popup is even generated. Commented Jul 13, 2012 at 18:05
  • "file.value.length will be 0" by @JonJaques is the answer I was looking for. Should be injected in the response IMHO. Commented Jan 16, 2014 at 17:43