Is there any way to change the style of the pop up?
We are looking into adding styling and/or themes. If you have any design ideas, please reach out at @SirCaseyJames on Twitter, or leave a message here on the WordPress Support forums. In the meantime, you can add your own custom styling through CSS.
I added a domain to the exclusion list; why is the pop up still showing up?
There could be several reasons. Be sure to first try clearing your browser and site cache. If it still does not take affect, please check what you entered into the text area. Domains must be separated by commas (i.e. ‘domain.com, test.com’). You must also use the most minimal amount of the domain to have the widest effect. For example, if you type in www.domain.com, anywhere that links to domain.com will not be excluded. Conversely, however, if you just type in domain.com, www.domain.com will be excluded. As such, it’s best to use as little as possible in the exclusion list.
If the problem persists, please submit an issue through the WordPress support forms.
Why is the pop up working on some links, but not others?
While rare, some themes may have markup that is incompatible with Casper’s Leave Notice. I’m happy to remedy this — just open up a support ticket with a link to your site and I’ll release a patch.
Another possibility is a theme or plugin unbinding JavaScript events on certain elements. The JavaScript event is required for the plugin to work. To figure out if this is the case, try switching themes or disabling other plugins. Once you find the source of the conflict, open up a support ticket and I may be able to find a fix.
Are there any known conflicts?
The only know conflict today is with Max Mega Menu, but there is an easy solution. This plugin by default unbinds JavaScript events from link elements, but they give you an option to turn this off. Just go to Mega Menu -> General Settings and find the option called Unbind JavaScript Events. Set this to no.