Detect when browser receives file download. I have a page that allows the user to download a dynamically generated file. It takes a long time to generate, so Id like to show a waiting indicator. The problem is, I cant figure out how to detect when the browser has received the file, so I can hide the indicator. Im making the request in a hidden form, which POSTs to the server, and targets a hidden iframe for its results. This article explains how to download a file from a GridView using ASP. Goldeneye 007 Reloaded Pc Game there. NET. This is so I dont replace the entire browser window with the result. I listen for a load event on the iframe, in the hope that it will fire when the download is complete. I return a Content Disposition attachment header with the file, which causes the browser to show the Save dialog. But the browser doesnt fire a load event in the iframe. One approach I tried is using a multi part response. Free HTML Website Maker. Create awesome website with slideshow in seconds. For Mac and WindowsSo it would send an empty HTML file, as well as the attached downloadable file. For example Content type multipartx mixed replace boundaryabcde. Content type texthtml. Content type applicationvnd. Content Disposition attachment filenamefoo. This works in Firefox it receives the empty HTML file, fires the load event, then shows the Save dialog for the downloadable file. But it fails on IE and Safari IE fires the load event but doesnt download the file, and Safari downloads the file with the wrong name and content type, and doesnt fire the load event. A different approach might be to make a call to start the file creation, then poll the server until its ready, then download the already created file. Bulk Sms Software Professional Rapidshare more. But Id rather avoid creating temporary files on the server. Does anyone have a better ideaI About the Tutorial Twitter Bootstrap is the most popular front end framework in the recent time. It is sleek, intuitive, and powerful mobile first frontend. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, and XML. Less extends CSS with dynamic behavior such as variables, mixins, operations and functions. Less runs on both the serverside with Node. Rhino or clientside.