During the server-side migration (PR #4032), the `instanceId` was built with `Date.now()`, making it unique per client reload. This approach was fine in the old browser-based architecture where reloads cleaned up everything automatically. But now the node_helper persists across reloads, so each reconnect created a new `HTTPFetcher` while the old one kept polling - silently multiplying API calls over time. The fix is simple: use `this.identifier` as the `instanceId`, which is already stable and unique per module slot. This is the same approach the Calendar module uses. On the node_helper side, when a provider already exists for the same `instanceId`, we now skip re-creation and just resend `WEATHER_INITIALIZED` so the client picks up where it left off. Fixes https://forum.magicmirror.builders/topic/20199
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!
Documentation
For the full documentation including installation instructions, please visit our dedicated documentation website: https://docs.magicmirror.builders.
Links
- Website: https://magicmirror.builders
- Documentation: https://docs.magicmirror.builders
- Forum: https://forum.magicmirror.builders
- Technical discussions: https://forum.magicmirror.builders/category/11/core-system
- Discord: https://discord.gg/J5BAtvx
- Blog: https://michaelteeuw.nl/tagged/magicmirror
- Donations: https://magicmirror.builders/#donate
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.

