Can't block javascript-based download

[avimar]

I originally had nightmare-load-filter blocking the URL that I didn't want to open, but my script was still hanging -- I see a download link opens up.

So I added nightmare-download-manager and set ignoreDownloads: true in the Nightmare setup but that didn't help. Apparently I tried this a while ago... segment-boneyard/nightmare#1071

The window opens from this code:
<script>window.open('SomePage.aspx?ID=1234');</script>

It seems this isn't getting caught by the filter or download manager. Doing an evaluate to remove the script doesn't always catch it before it executes.

I even tried clobbering the window.open using this code: if(typeof window.open === 'function') window.open=null; in my wait, but that didn't seem to help.

Any suggestions?