Originally created by: BilgeGates
Originally owned by: BilgeGates
What happened?
In pieceImageCache.ts, blob URLs created via URL.createObjectURL() are not revoked in all error paths. If an exception occurs between object URL creation and image assignment, the URL is orphaned and never cleaned up. On repeated piece style changes this accumulates memory — especially visible on mobile.
File: src/shared/utils/pieceImageCache.ts
Steps to reproduce
- Open the app on a low-memory device or mobile browser
- Rapidly switch between multiple piece styles several times
- Monitor memory usage in DevTools
Expected
Blob URLs are revoked on all exit paths — success, error, and exception.
Actual
Blob URLs leak when an exception interrupts the load sequence, accumulating memory over time.
Root cause
URL.revokeObjectURL() is not called in the exception/abort path. A finally block or try/catch around the object URL creation is needed.
Browser & OS
Safari on iOS — most likely to hit OOM due to tighter memory limits.
Before submitting
- [x] I searched existing issues and this is not a duplicate.
