Kristjan ESPERANTO 5d11b5d73b fix: modules losing data after HTTP 304 responses (#4180)
When a server responds with 304 (nothing changed since last fetch), the
response has no body. Several modules were trying to parse that empty
body anyway - which either cleared their cached data or threw an
exception. The result: a blank calendar, empty newsfeed, or missing
weather data after the next refresh cycle.

This was reported in the forum:
https://forum.magicmirror.builders/topic/20250/calendar-events-broadcasting-nothing-showing

The bug was "introduced" by #4120, which correctly started forwarding
304s to consumers - but not all were ready for it.

### Fix

Skip parsing on 304 and keep the existing data as-is:

- **calendar** - re-broadcasts cached events
- **newsfeed** - re-broadcasts cached items
- **buienradar, openmeteo, weatherflow, weathergov** - return early
before calling `response.json()`
2026-06-06 20:05:05 +02:00
2023-07-01 21:17:31 +02:00
2024-03-16 13:06:27 +01:00
2020-05-11 22:22:32 +02:00
2025-09-30 18:14:08 +02:00
2023-10-01 20:13:41 +02:00
2026-02-01 08:22:46 +01:00

MagicMirror²: The open source modular smart mirror platform.

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MagicMirror² is an open source modular smart mirror platform. With a growing list of installable modules, the MagicMirror² allows you to convert your hallway or bathroom mirror into your personal assistant. MagicMirror² is built by the creator of the original MagicMirror with the incredible help of a growing community of contributors.

MagicMirror² focuses on a modular plugin system and uses Electron as an application wrapper. So no more web server or browser installs necessary!

Animated demonstration of MagicMirror²

Documentation

For the full documentation including installation instructions, please visit our dedicated documentation website: https://docs.magicmirror.builders.

Contributing Guidelines

Contributions of all kinds are welcome, not only in the form of code but also with regards to

  • bug reports
  • documentation
  • translations

For the full contribution guidelines, check out: https://docs.magicmirror.builders/about/contributing.html

Enjoying MagicMirror? Consider a donation!

MagicMirror² is Open Source and free. That doesn't mean we don't need any money.

Please consider a donation to help us cover the ongoing costs like webservers and email services. If we receive enough donations we might even be able to free up some working hours and spend some extra time improving the MagicMirror² core.

To donate, please follow this link.

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Description
MagicMirror² is an open source modular smart mirror platform. With a growing list of installable modules, the MagicMirror² allows you to convert your hallway or bathroom mirror into your personal assistant.
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