This function will get the filesize of the requested URL: function get_filesize(url, callback) { var xhr = new XMLHttpRequest(); xhr.open("HEAD", You can also download a sourcemap file for use when debugging with a compressed file. will find an uncompressed release, a compressed release, and a map file. on creating a custom build that excludes some APIs to reduce file size. Hi, I am starting with ajax and got a problem with a download I would like I always get errors like this on all browsers (this ones from chrome):. 2 Aug 2015 Use jQuery to send a HEAD request with AJAX and get the size of a file without downloading it. This snippet places the size of the file in braces Display the text Choose file from system to get the fileSize on the screen. Click on the browse button to select the upload file. After selecting a file, the function is Property · HTML |