Question

i have this script to validate the filesize when you upload a file:

$.validator.addMethod('filesize', function(value, element, param) {
    // param = size (en bytes) 
    // element = element to validate (<input>)
    // value = value of the element (file name)
    return this.optional(element) || (element.files[0].size <= param) 
});

and i keep getting this error only in IE9:

SCRIPT5007: Unable to get value of the property '0': object is null or undefined

IE9 Debug says the error is in this line:

return this.optional(element) || (element.files[0].size <= param)

Answer 1

Yeah, IE9 doesn’t have support for file API. You’ll need to do it server-side or use a plugin.