Nightmare process won't exit if page has confirm dialog on page exit

[Fauntleroy]

When trying to .end() a nightmare instance the process will hang forever if there is a confirm dialog on page exit. The confirm dialog is also not visible.

Code:

var Nightmare = require('nightmare');
var nightmare = Nightmare({ show: true });

nightmare
  .goto('https://docs.google.com/forms/d/e/1FAIpQLSe2SK5Vzy82yB9SjLI5B3zfrR1QEaxyjyRGvVxWp_K66p31ZA/viewform')
  .type('input[name="entry.1921379240"]', 'NodeSchool Oakland')
  .end()
  .then(function () {});

My view of the electron window:

Is there some way to forcefully close the nightmare instance?

[Fauntleroy]

I have isolated the issue. It seems that Google Forms is setting the unload event and preventing navigation with the special unload confirm dialog.

I have a temporary fix right now:

• Hijack window.addEventListener and silently kill attempts to bind unload events
• Make window.onunload and window.onbeforeunload unwritable properties

I'll probably submit a pull req after I've cleaned up my solution.

[rosshinkley]

For what it's worth, you could instead prop up a custom preload to handle the confirm case manually. By default, the confirm handler returns the default response, which in this case is probably to stay on the page.

[Fauntleroy]

@rosshinkley in this case, window.confirm isn't the issue, it's the unload and onbeforeunload handlers. I managed to fix it with a custom preload.js script, which I've submitted in a pull request here: #825

[rosshinkley]

Fixed with #825. Closing.