Steps to reproduce:

1. Navigate to Monitoring->Hosts->Dashboards (Zabbix server host).
2. Select Zabbix server health tab.
3. Click on Zabbix server: Zabbix cache usage, % free. (open the charts view)
4. Try to select a time period in the graph.

Result:
Time period is not selected + JavaScript console error. See screenshot:

Expected:
Time period selected with no error.

Note: No error in console, if choosing a time period for the same graph while in host.dashboard.view. Error occurs only when specific graph is opened (charts.view).