Browser download file prompt using JavaScript

javascript file-browser
aunlead picture aunlead · Apr 7, 2009 · Viewed 22.9k times · Source

I was wondering if there was any method to implement browser's download file prompt using JavaScript.

My reason - well users will be uploading files to a local fileserver which cannot be accessed from the webserver. In other words, both will be on different domains!

For example, let’s say websites hosted on www.xyz.com, but files would reside on local file server with address like \\10.10.10.01\Files\file.txt. How am I uploading/transferring file to local fileserver... using ActiveX and VBscript! (don’t ask :-)

So I am storing local file path in my database and binding that data to a grid. When the user clicks on that link, the file opens in a window (using JavaScript).

Problem is certain file types like text, jpg, pdf, etc. open inside browser window. How would I be able to implement content-type or content-disposition using client side scripting? Is that even possible?

EDIT: the local file server has a window's shared folder on which the files are saved.

Answer

John Gietzen picture John Gietzen · Apr 7, 2009

"content-disposition: attachment" is pretty much the only way to force that, and this MUST be set in the response header.

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