Pop-ups on a page can be removed by selecting one of the two pop-up removal options under Advanced Options.
The first option, “Omit pop-ups from the screenshot” will attempt to remove the pop-up from the screenshot. This works in most cases.
The second option, “Omit specific elements from the screenshot” should be used when the first option fails. This option will allow you to enter CSS selectors for the elements you’d like removed from the screenshot. For example, you can enter “#pop-up” and this will remove the element with this selector.
Note: If this option is applied to an existing snapshot, you will need to update the snapshot after you apply the option.