Based on a feature available with Oracle Maxymiser - a beneficial functionality they had was the ability to run a function when the targeting for Single Page Application no longer qualifies e.g. when the page URL changes to something not matching the targeting of a campaign. This was typically used to remove content that was added to the DOM due to the campaign script that wouldn't be removed when the URL/elements change. Example: Targeting: https://book.nationalexpress.com/coach/#/choose-journey Campaign Script: Inserts a banner at the top of the page, only relevant for this page. Once the user proceeds to a different page, like https://stable.nationalexpress.com/coach/#/choose-fare , run a rollback function (as targeting no longer suffices) to remove the banner. Here's what it looked like in Oracle Maxymiser: spa.when([ spa.conditions.location([' https://book.nationalexpress.com/my-account/#/mytickets/activejourney ', ' https://ptbook.nationalexpress.com/my-account/#/mytickets/activejourney ']), spa.conditions.element('app-ticket-item-tickettype > div > .text-right > p'), ]).then(() => { // If conditions match // We do our script }).rollback(() => { // We revert changes when the conditions no longer match });
