Core: dev-state page not working in 0.38.1 or 0.38.2

[jjpeet]

Make sure you are running the latest version of Home Assistant before reporting an issue.

You should only file an issue if you found a bug. Feature and enhancement requests should go in the Feature Requests section of our community forum:

Home Assistant release (hass --version):
0.38.2

Python release (python3 --version):
3.4.3

Component/platform:
Front end; https://hass.xxxx.com:8123/dev-state

Description of problem:
This page presents a blank which screen with a spinner in the middle spinning forever. The Home Assistant left hand menu is still there, but nothing other than the spinner appears witihn the content portion of the page.

Expected:
The normal dev-state page with a list of all my sensors, devices etc.

Problem-relevant configuration.yaml entries and steps to reproduce:
None.

Traceback (if applicable):
This is what the log reports when I refresh the page;
17-02-13 18:27:25 INFO (MainThread) [homeassistant.components.http] Serving /api/bootstrap to 192.168.0.54 (auth: True)
17-02-13 18:27:25 INFO (MainThread) [homeassistant.components.http] Serving /api/websocket to 192.168.0.54 (auth: False)

Additional info:

[Danielhiversen]

Try to clear the browser cache and shift+f5

[Chariyski]

Hi @Danielhiversen

clearing the browser cache works, but the problem occurs each time I open HA and I need to clear the cache again.

Console errors:

Uncaught DOMException: Failed to execute 'registerElement' on 'Document': Registration failed for type 'iron-meta'. A type with that name is already registered.
    at window.Polymer (https://****/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:1:1538)
    at https://****/frontend/panels/dev-service-9f749635e518a4ca7991975bdefdb10a.html:1:137
    at https://****/frontend/panels/dev-service-9f749635e518a4ca7991975bdefdb10a.html:1:2088
window.Polymer @ frontend-d48d9a1….html:1
(anonymous) @ dev-service-9f74963….html:1
(anonymous) @ dev-service-9f74963….html:1
frontend-d48d9a1….html:1 Uncaught DOMException: Failed to execute 'registerElement' on 'Document': Registration failed for type 'paper-input-char-counter'. A type with that name is already registered.
    at window.Polymer (https://*******/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:1:1538)
    at https://*****/frontend/panels/dev-service-9f749635e518a4ca7991975bdefdb10a.html:1:10950
window.Polymer @ frontend-d48d9a1….html:1
(anonymous) @ dev-service-9f74963….html:1
frontend-d48d9a1….html:1 Uncaught DOMException: Failed to execute 'registerElement' on 'Document': Registration failed for type 'iron-iconset-svg'. A type with that name is already registered.
    at window.Polymer (https://*****/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:1:1538)
    at https://*****/frontend/panels/dev-service-9f749635e518a4ca7991975bdefdb10a.html:1:59550
window.Polymer @ frontend-d48d9a1….html:1
(anonymous) @ dev-service-9f74963….html:1
dev-service-9f74963….html:1 Uncaught TypeError: Cannot read property 'services' of undefined
    at HTMLElement.computeServiceDomains (https://****/frontend/panels/dev-service-9f749635e518a4ca7991975bdefdb10a.html:1:69054)
    at HTMLElement._computeEffect (https://*****/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:2:30748)
    at HTMLElement._effectEffects (https://******/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:2:27759)
    at HTMLElement._propertySetter (https://*****/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:2:27507)
    at HTMLElement.s (https://*******/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:2:28646)
    at https://*******/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:4:56570
    at Array.forEach (native)
    at Object.window.hassUtil.dynamicContentUpdater (https://******/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:4:56546)
    at HTMLElement.<anonymous> (https://*****/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:5:88468)
    at HTMLLinkElement.c (https://*******/static/frontend-d48d9a13f7d677e59b1d22c6db051207.html:2:25985)
computeServiceDomains @ dev-service-9f74963….html:1
_computeEffect @ frontend-d48d9a1….html:2
_effectEffects @ frontend-d48d9a1….html:2
_propertySetter @ frontend-d48d9a1….html:2
s @ frontend-d48d9a1….html:2
(anonymous) @ frontend-d48d9a1….html:4
window.hassUtil.dynamicContentUpdater @ frontend-d48d9a1….html:4
(anonymous) @ frontend-d48d9a1….html:5
c @ frontend-d48d9a1….html:2

[scottdalton]

Are you using SSL?

For me with 0.38.2 (and .1) trying to access the Developer tools Services/States icons via SSL results in a spinner which never resolves. Connecting via http:// works fine.
In my particular case I'm going through a reverse proxy so Home Assistant itself is not set up to use SSL. Nothing to speak of in the logs.

[Chariyski]

@scottdalton,

I use LetsEncrypt. And the issue is the same - never ending spinner :)

[jjpeet]

Seems to be working for me after clearing the cache

[CorBer]

I had the same issue, just using shift_F5 did the job !!

[balloobbot]

There hasn't been any activity on this issue recently. Due to the high number of incoming GitHub notifications, we have to clean some of the old issues, as many of them have already been resolved with the latest updates.

Please make sure to update to the latest Home Assistant version and check if that solves the issue. Let us know if that works for you by adding a comment :+1:

[jjpeet]

Clearing the cache worked for me and it hasn't been an issue since.
Thx
JP