Another New Error Today

Configuration Frontend
1

Running HA on a RPI3 with version 0.86.4. Today another new error has surfaced. It occurred after refreshing a Lovelace page. At first I thought it was associated with some code on that page, but it seems to occur while refreshing any Lovelace page. Log output shows:

2019-02-12 21:14:08 ERROR (MainThread) [frontend.js.latest.201901211] http://192.168.xx.xx:8123/lovelace/home:0:0 Uncaught 
2019-02-12 21:14:29 ERROR (MainThread) [frontend.js.latest.201901211] http://192.168.xx.xx:8123/lovelace/rooms:0:0 Uncaught 
2019-02-12 21:17:13 ERROR (MainThread) [frontend.js.latest.201901211] http://192.168.xx.xx:8123/lovelace/system:0:0 Uncaught

Is this a HA/Lovelace issue or an issue with the latest javascript release? If it is a javascript issue, how would I roll back to the prior version. If it’s not, what solutions might be available?

Thanks for any help.

2

Are you using custom cards in lovelace? On your home page, rooms page, or system page?

3

I had similar problems after some updates. Pressing Shift-F5 in Chrome fixed it. Looks like old front end is used.

4

Rebooting both the Pi and desktop computer did clear the issue. Not sure why it occurred but happy to see a simple fix get thinks back to normal.
Thanks to both responders.

5

Browsers (chrome, firefox, ie) are designed to download the least amount of resources while using resources already loaded on the system from previous loads. That’s called caching. So when you get to a website for the first time, it will download everything it needs to run the page. Then on each subsequent visit, it uses those cached resources and only downloads new information. This can lead to odd behavior if a file updates but the browser uses the cached version instead of getting the updated version.