I clicked on the export button while looking at my site in Safari and instead of downloading the file it just reloaded the page. I tried to look around and find an answer to this but didn't find anything. If I open my page in Chrome I get the export I expect.
I downloaded 2015.1.429 to make sure it wasn't an update.
I was using Safari because of Chromes battery life behavior, but I know the users of the site I'm working on do use Safari.