Uncaught TypeError: javascript error for metrics page in browser console

[javazquez]

Hello,
I am seeing errors in the console for Chrome and Firefox for the '/admin/metrics' page

Chrome below

Uncaught TypeError: Cannot read property 'replace' of undefined
getTimerDiv @ metrics.js:22
(anonymous function) @ metrics.js:61
b.extend.each @ jquery.min.js:3
updateTimerCharts @ metrics.js:60
updateCharts @ metrics.js:157
window.ws.onmessage @ metrics.js:171

Firefox
TypeError: timerName is undefined metrics.js:22:8

Thanks,
Juan