electric-sql/electric @electric-sql/client@1.1.4

on GitHub

Patch Changes

• b377010: Fix race condition where collections get stuck and stop reconnecting after rapid tab switching, particularly in Firefox.

  Root cause: Two race conditions in the pause/resume state machine:

  1. #resume() only checked for paused state, but #pause() sets an intermediate pause-requested state. When visibility changes rapidly, #resume() is called before the abort completes, leaving the stream stuck.
  2. Stale abort completions could overwrite the active state after #resume() has already started a new request.

  State machine flow:

  Normal pause:
    active → pause() → pause-requested → abort completes → paused
  
  Interrupted pause (rapid tab switch):
    active → pause() → pause-requested → resume() → active
             ↑                              ↑
             abort starts              resumes immediately,
                                       prevents stuck state
  

  Additional fix: Memory leak where visibility change event listeners were never removed, causing listener accumulation and potential interference from stale handlers.