This is because the site blocks HTTP HEAD requests.

In T378901#10575944, @LucasWerkmeister wrote:

https://cdnjs.toolforge.org/npm/chart.js is a 404 URL – Toolforge cdnjs is not a drop-in replacement for jsdelivr. (The usual approach is to include a version number in the URL, e.g. https://tools-static.wmflabs.org/cdnjs/ajax/libs/Chart.js/4.4.1/chart.js – I don’t know if cdnjs also offers “latest” URLs. Note that jsdelivr currently serves chart.js 4.4.8, which doesn’t seem to be available on cdnjs, possibly due to #14263.)

Hello @Gopavasanth, thank you for the prompt response. I've resolved the bug with the dates and added a month/year selector, also i would like to add that @Rihaan180 has also helped me with this PR.