Remove Specific Campaign From Any URLs Containing a Specific URL Path

document.addEventListener('om.Campaign.startShow', function(event) {

    if(window.location.search.indexOf('shopping-cart') > -1) { // replace shopping-cart wtih your specific URL path

        var optinCampaign = document.querySelector('#om-CAMPAIGN_ID'); // replace CAMPAIGN_ID with the unique ID of your campaign

        optinCampaign.parentNode.removeChild(optinCampaign);

    }

});