We just deployed a site onto Windows 2012 (I'm not sure if this is relevent or not). We have a page that contains links to a page that should open in another window.
<a target="_blank" href="../downloader.aspx?ik=3431158">notes.txt</a>
Pretty basic! This code has been in production for over a year and it works as expected: click the link and the downloader.aspx page is opened in another window or tab. We are now testing the site on Win 2012. Without changing anything on this page, it is not working in the test environment.
Other facts that might be relevent: we are using a ModalPopupExtender, the popup is hosting an iframe and the links are on the page in the iframe.
After deploying to Win 2012, this is no longer working. We have tested in IE, FireFox and Chrome - no luck in any browser.
As a workaround, I've added some JavaScript code to handle the click and call window.open() and I get the results I expect.
Has anyone seen this before? Why would a simple href just stop working?
Edit: Pasted the View Source at http://pastebin.com/Z0qv1gY0