When reporting a bug please provide the following information to help reproduce the bug:
Version 3 beta
Windows 10
Chrome
When you export a file, a new blank tab ("about: blank") opens with the download window. As long as this tab remains open, you can't download anything again. This is particularly frustrating when using "Custom tabular export": not only it does not download anything, but you have to restart the settings configuration.

Automatically close the new blank tab or allow multiple download tabs.
Actually, I do not see why in 2018, that a new tab has to be opened at all for a download from a webapp. We should look into handling all that seamlessly and in a better fashion across all 3 browsers.
@wetneb Can I be assigned to this ?
@kushthedude Sure, let us know if you have questions.
@thadguidry The following bug is not present in Safari. Although I have fixed it on chrome too, please take a look at referenced PR.
@kushthedude On Firefox browser, it still opens a new browser tab in order to download the file. Let's work more towards not opening a new browser tab at all, in order to download the file.
@theadguidry The PR opens a new tab and closes it as soon as the user starts download or cancel it. Hence there is no opening of new tab now.
@kushthedude Have you tested your PR on Firefox? For me, your PR keeps the tab open. Ideally, we don't want a tab to open at all, but if that is too complex for you at this time then I understand.
Also please test our export option "Custom tabular exporter" on both Firefox and Chrome, because both still keep a browser tab open.
Most helpful comment
Actually, I do not see why in 2018, that a new tab has to be opened at all for a download from a webapp. We should look into handling all that seamlessly and in a better fashion across all 3 browsers.