Yeah right, poor performances for out beloved $.animate(), any workaround?
Yes of course, give a look at:

jQuery transit or jQuery animate enhanced

They both are valid plugins that give an alternative (or an override) to the animate method using css transformations if possible.

Read this article to find more about this topic: CSS tricks – Tale of Animation Performance

Hello all,

I would like to suggest you this article. It explains how to create a “trigger” download with jQuery using temporary forms.

To sum up we have a PHP part (backend is not mentioned in the article):

<?php
$filename = $_POST['filename'].".".$_POST['format'];
header ("Content-Disposition: attachment; filename=$filename");
echo $_POST['content'];
return

and a Javascript part:

jQuery.download = function(url, data, method){
	//url and data options required
	if( url && data ){ 
		//data can be string of parameters or array/object
		data = typeof data == 'string' ? data : jQuery.param(data);
		//split params into form inputs
		var inputs = '';
		jQuery.each(data.split('&'), function(){ 
			var pair = this.split('=');
			inputs+='<input type="hidden" name="'+ pair[0] +'" value="'+ pair[1] +'" />'; 
		});
		//send request
		jQuery('<form action="'+ url +'" method="'+ (method||'post') +'">'+inputs+'</form>')
		.appendTo('body').submit().remove();
	};
};

that is triggered with

$.download('/export.php','filename=mySpreadsheet&format=xls&content=' + spreadsheetData );

NOTE: Be aware of the splitter char ” = “, because if you are trying to generate something with ” = ” chars inside the script will not work, then replace:

var pair = this.split('=');

with

var pair = this.split('|'); // what you want

Hello all,
Sometimes when developing applications using HTML Canvas on mobile, Android stock browser doesn’t load your canvas and doesn’t return any error.
If you’re drawing some images the problem can be found in the drawImage() having incorrect parameters.

Read more