Uncaught ReferenceError: Polymer is not defined

[nak714]

I have used this customization for the last 2 years (awesome custom button) and after upgrading HA, HACS and the latest version of fan-percent button row it is not longer working.
I am seeing the following error in the logs: 2023-05-12 13:59:14.804 ERROR (MainThread) [frontend.js.latest.202305033] http://X.X.X.X/hacsfiles/fan-percent-button-row/fan-percent-button-row.js:9:35 Uncaught ReferenceError: Polymer is not defined

I see the following on my front end:

I am running HA 2023.5.2, HACS 1.32.1 and the latest version of fan-percent.

[finity69x2]

latest version of fan-percent.

Are you sure?

that should have been fixed in version 3.0 released a few days ago.

[wvdeadhead]

I'm seeing the same thing even after clearing browser cache/cookies and updating to 3.1:

Logger: frontend.js.latest.202305031 Source: components/system_log/init.py:257 First occurred: 8:05:04 AM (2 occurrences) Last logged: 8:05:22 AM

https://my.domain/hacsfiles/fan-percent-button-row/fan-percent-button-row.js:9:35 Uncaught ReferenceError: Polymer is not defined

my ui-lovelace.yaml:

- entity: fan.living_room_fan
  type: custom:fan-percent-button-row
  name: " "
  customTheme: false
  state_color: true

my configuration.yaml:

- url: /hacsfiles/fan-percent-button-row/fan-percent-button-row.js
  type: module

[nak714]

I am running 3.1.

As a FYI I am having the same issue with Cover Position Preset Row button.

[wvdeadhead]

Interestingly, Companion App version "beta-10008-d81913b7-full" does not throw an error and the buttons work.

[finity69x2]

This seems to definitely be a browser cache issue especially if it works on a different browser.

I'm not getting any polymer errors in my HA using the latest version. And I'm not getting any other notifications from other users so I have to assume that the polymer issue is fixed.

If you already cleared the cache and it's still not working then I don't have much more to offer for getting it to work.

The only thing I can suggest is to uninstall the plugin completely (including from the resources), restart HA, do a hard reload of the browser page (on Chrome hit F12 then right click the reload button and select "Empty Cache and Hard Reload"), then re-install the plugin, restart HA and do the hard reload again to see if that makes it work.

[wvdeadhead]

At least in my case, you are correct, it was a browser cache issue. Another round of cache clearing and a browser restart fixed the problem.