Greetings, I have a "Download" button that, when clicked, initiates a complex server-side process that results in a binary file being sent to the user-agent. The download preparation process may require several minutes, as it involves transferring large files over the network and packing them into a ZIP archive.
My goal is to display download preparation progress to the user as the download is being prepared. I have a PHP script that accepts a unique download key and returns progress on the copying/packing operation via JSON response. The problem I'm having is that Webkit-based browsers (e.g., Chrome 18.0) refuse to carry-out AJAX requests once the GET request for the binary file has been made. The behavior is the same whether I request the file-download script via conventional hyperlink (e.g., <a href="file.php?file=file.zip">) or using JavaScript (e.g., "window.location.href = 'file.php?file=file.zip'" in conjunction with preventDefault()). As soon as the user-agent has downloaded the file completely, the AJAX requests are again carried-out as normal. A bug has already been filed about this issue as it relates to POST requests, and has been acknowledged as such ( https://bugs.webkit.org/show_bug.cgi?id=23933 ). Even though this issue seems to be the same or related, I have been discouraged from discussing it in the same bug report. So, I have come to the mailing list for guidance. The equivalent POST-related bug, which is described in the context of uploading files and reporting upload progress, mentions a workaround via the XmlHttpRequest object. However, as there seems to be no "receive()" equivalent to send(), I'm not sure how best to proceed. Any insight is greatly appreciated. Thank you, -Ben _______________________________________________ webkit-help mailing list [email protected] http://lists.webkit.org/mailman/listinfo.cgi/webkit-help
