We have a scenario where there are some dead links out in the world to our calendar. Because the page exists, it won't result in a 404. However, some of the URL parameters are old filter values which are no longer valid, so it results in an error and displays no data on the calendar.
Is there a way to clear out filters based on their value? Specifically, if a filter value is invalid (e.g. the taxonomy id on which the URL says to filter doesn't exist) is there a way to clear the filters, even if through custom code?