400 Bad Request

The server could not comply with the request since it is either malformed or otherwise incorrect.

Cannot decode URL parameter filter: ['age_ranges%3A10-10%2Bage_ranges%3A15-15%2Bmunicipalities%3AAlterswil%2Bperiod_ids%3A5f8e7da1ab6544df97da6c95ae0d49c0']