CFFDRS /fireweather/ fails with 503 when end of slice is 2100

[charparr]

https://earthmaps.io/fire_weather/point/64.8/-147.5/2080/2100?op=7_day_rolling_average yields a 503
vs.
https://earthmaps.io/fire_weather/point/64.8/-147.5/2080/2099?op=7_day_rolling_average yields a valid JSON

Data description indicates we'd expect data through 2100: "dataset spans 1980–2100 with daily temporal resolution from April 1 to October 31 of each year, at 0.25 × 0.25 degree spatial resolution."

Recommend a doc clarification, or double-checking the start/end years in the route.