遇到与浏览器兼容性相关的一些问题。我正在使用UltraMega Tech的上传进度条形码，如下所示。该代码生成一个状态栏，用于跟踪用户提交的文件的进度。它适用于IE9和Firefox，但Chrome不是这种情况。使用Chrome时，表单会消失并显示上传栏，但栏不会移动以跟踪文件上传。但是，该文件仍然上传。有什么想法吗？
<style>
#progress-bar, #upload-frame {display: none;}
</style>
<script>
(function ($) {
// We'll use this to cache the progress bar node
var pbar;
// This flag determines if the upload has started
var started = false;
$(function () {
// Start progress tracking when the form is submitted
$('#usp_form').submit(function() {
// Hide the form
$('#usp_form').hide();
// Cache the progress bar
pbar = $('#progress-bar');
// Show the progress bar, initialize the jQuery UI plugin
pbar.show().progressbar();
// We know the upload is complete when the frame loads
$('#upload-frame').load(function () {
// This is to prevent infinite loop in case the upload is too fast
started = true;
});
// Start updating progress after a 1 second delay
setTimeout(function () {
// We pass the upload identifier to our function
updateProgress($('#uid').val());
}, 1000);
});
});
function updateProgress(id) {
var time = new Date().getTime();
// Make a GET request to the server, Pass our upload identifier as a parameter
$.get('http://example.com/getprogress.php', { uid: id, t: time }, function (data) {
// Get the output as an integer
var progress = parseInt(data, 10);
if (progress < 100 || !started) {
// Determine if upload has started
started = progress < 100;
// If we aren't done or started, update again
updateProgress(id);
}
else if(progress == 100)
{
$('#Patience_message').show();
}
// Update the progress bar percentage, but only if we have started
started && pbar.progressbar('value', progress);
});
}
}(jQuery));
getprogress.php
<?php
if (isset($_GET['uid'])) {
// Fetch the upload progress data
$status = uploadprogress_get_info($_GET['uid']);
if ($status) {
// Calculate the current percentage
echo round($status['bytes_uploaded']/$status['bytes_total']*100);
}
else {
// If there is no data, assume it's done
echo 100;
}
}