Guestbook Response JSF popup Cancel button not working

What steps does it take to reproduce the issue? Create a Dataverse/Dataset and upload files. Add a Guestbook with required fields to the Dataset. Publish

• When does this issue occur? Try to download a file and you will see the Guestbook Response dialog. Press cancel and nothing happens.

• Which page(s) does it occurs on? Dataset page when trying to download an image

• What happens?

• To whom does it occur (all users, curators, superusers)? All

• What did you expect to happen? Dialog should close. The workaround is to hit the browser's back button.

Which version of Dataverse are you using? 6.9

Any related open or closed issues to this bug report?

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Reproduce this on the Dataset page by creating a Dataverse/Dataset, adding a required Guestbook, publishing, downloading an image, and pressing Cancel in the Guestbook Response dialog. Start by locating the JSF popup implementation used there; done means the Cancel button closes the dialog for all users without requiring the browser Back button.