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fix(weather): avoid loading state after reconnect#4121

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khassel merged 1 commit intoMagicMirrorOrg:developfrom
KristjanESPERANTO:weather/reconnect
Apr 27, 2026
Merged

fix(weather): avoid loading state after reconnect#4121
khassel merged 1 commit intoMagicMirrorOrg:developfrom
KristjanESPERANTO:weather/reconnect

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@KristjanESPERANTO
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When a client reconnects while the backend is still in its rate-limit protection phase, the weather module has no data to show and stays on Loading... until the next scheduled API call. This mainly affects server mode setups, where the server keeps running while a remote client temporarily loses its connection and reloads. It was raised in the forum and is worthy of a fix to improve the user experience.

With this PR the node helper caches the last successful WEATHER_DATA payload per instance and replays it immediately on reconnect. The client gets its last known state right away instead of waiting for the next fetch. The cache is cleaned up when the provider stops.

Tests are included to cover reconnect with and without cached data, and the cleanup path.

@sdetweil
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We are always providing server mode functionality.

@KristjanESPERANTO
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Yes, but what’s your point in the context of this PR?

@sdetweil
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You said applies in server mode. We always have server. Even the electron launches as client

@KristjanESPERANTO
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Sure, and I used the terms "mainly" and "remote client" in the same sentence, and I wouldn't call Electron on the same machine a remote client. English isn't my mother tongue, so I'm sorry, I don't get your point. Is there anything wrong with the change?

@sdetweil
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Nothing.

@khassel khassel merged commit 4c2a373 into MagicMirrorOrg:develop Apr 27, 2026
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@KristjanESPERANTO KristjanESPERANTO deleted the weather/reconnect branch April 29, 2026 07:19
@khassel khassel mentioned this pull request Apr 30, 2026
khassel added a commit that referenced this pull request Apr 30, 2026
## Release Notes
Thanks to: @cgillinger, @khassel, @KristjanESPERANTO, @sonnyb9
> ⚠️ This release needs nodejs version >=22.21.1 <23 || >=24 (no change
to previous release)

[Compare to previous Release
v2.35.0](v2.35.0...v2.36.0)

This release falls outside the quarterly schedule. We opted for an early
release due to:
- Security fix for the internal cors proxy
- API change of the weather provider smi
- Several bug fixes

### Breaking Changes

The cors proxy is now disabled by default. If required, it must be
explicitly enabled in the `config.js` file. See the
[documentation](https://docs.magicmirror.builders/configuration/cors.html).

### ⚠️ Security

You can find several publicly accessible MagicMirror² instances.

This should never be done. Doing so makes your entire configuration,
including secrets and API keys, publicly visible. Furthermore, it allows
attackers to target the host; this is only prevented beginning with this
release.

Public MagicMirror² instances should always run behind a reverse proxy
with authentication.

### [core]
- Prepare Release 2.36.0 (#4126)
- Allow HTTPFetcher to pass through 304 responses (#4120)
- fix(http-fetcher): fall back to reloadInterval after retries exhausted
(#4113)
- config endpoint must handle functions in module configs (#4106)
- fix replaceSecretPlaceholder (#4104)
- restrict replaceSecretPlaceholder to cors with allowWhitelist (#4102)
- fix: prevent crash when config is undefined in socket handler (#4096)
- fix cors function for alpine linux (#4091)
- fix(cors): prevent SSRF via DNS rebinding (#4090)
- add option to disable or restrict cors endpoint (#4087)
- fix: prevent SSRF via /cors endpoint by blocking private/reserved IPs
(#4084)
- chore: add permissions section to enforce pull-request rules workflow
(#4079)
- update version for develop

### [dependencies]
- update dependencies (#4124)
- chore: update dependencies (#4088)
- refactor: enable ESLint rule "no-unused-vars" and handle related
issues (#4080)

### [modules/newsfeed]
- fix(newsfeed): prevent duplicate parse error callback when using
pipeline (#4083)

### [modules/updatenotification]
- fix(updatenotification): harden git command execution + simplify
checkUpdates (#4115)
- fix(tests): correct import path for git_helper module in
updatenotification tests (#4078)

### [modules/weather]
- fix(weather): use nearest openmeteo hourly data (#4123)
- fix(weather): avoid loading state after reconnect (#4121)
- weather: fix UV index display and add WeatherFlow precipitation
(#4108)
- fix(weather): restore OpenWeatherMap v2.5 support (#4101)
- fix(weather): use stable instanceId to prevent duplicate fetchers
(#4092)
- SMHI: migrate to SNOW1gv1 API (replace deprecated PMP3gv2) (#4082)

### [testing]
- ci(actions): set explicit token permissions (#4114)
- fix(http_fetcher): use undici.fetch when dispatcher is present (#4097)
- ci(codeql): also scan develop branch on push and PR (#4086)
- refactor: replace implicit global config with explicit global.config
(#4085)

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: sam detweiler <sdetweil@gmail.com>
Co-authored-by: Kristjan ESPERANTO <35647502+KristjanESPERANTO@users.noreply.github.com>
Co-authored-by: Veeck <github@veeck.de>
Co-authored-by: veeck <gitkraken@veeck.de>
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Co-authored-by: Ikko Eltociear Ashimine <eltociear@gmail.com>
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Co-authored-by: Bugsounet - Cédric <github@bugsounet.fr>
Co-authored-by: Koen Konst <koenspero@gmail.com>
Co-authored-by: Koen Konst <c.h.konst@avisi.nl>
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Co-authored-by: Andrés Vanegas Jiménez <142350+angeldeejay@users.noreply.github.com>
Co-authored-by: cgillinger <christian.gillinger@gmail.com>
Co-authored-by: Sonny B <43247590+sonnyb9@users.noreply.github.com>
Co-authored-by: sonnyb9 <sonnyb9@users.noreply.github.com>
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3 participants