Empowering People Ethically with the leading open source alternative to Google Analytics that gives you full control over your data. Matomo lets you easily collect data from websites & apps and visualise this data and extract insights. Privacy is built-in. Liberating Web Analytics. Star us on Github? +1. And we love Pull Requests!
The All Websites dashboard accepts invalid dates via URL parameters as per the examples below
https://demo.matomo.cloud/index.php?module=MultiSites&action=index&idSite=2&period=day&date=2024-02-31 takes an invalid date and handles it as the 3rd of March
https://demo.matomo.cloud/index.php?module=MultiSites&action=index&idSite=2&period=day&date=2024-09-31 takes an invalid date and handles it as the 1st of October
The JavaScript datepicker shows an error but the back end still processes the date and shows analytics for the handled date.
This is a bit of a edge case but we should probably throw an exception or display a warning.