Disable Electron spellcheck and background throttling - #2934
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bb is a control plane, not a document editor. Spellcheck walks the DOM on input. Background throttling pauses token streams and query refetch when the window is occluded. Fixes get-bb#2693
This was referenced Sep 2, 2026
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What was wrong
Chromium's spellchecker walks the DOM on input, which is wasted work in a control-plane UI. With
backgroundThrottlingon, token streams, reconnect timers, and query refetch stall when the desktop window is occluded. Root cause of the main-thread cost in #2693.What changed
webPreferences.spellcheck: falseandsession.setSpellCheckerEnabled(false)on window create and context-menu register.webPreferences.backgroundThrottling: false.HOST_DAEMON_PROTOCOL_VERSIONchange. Remote-first startup was already correct and is unchanged.How you verified
apps/desktop/test/desktop-window-factory.test.tsanddesktop-context-menu.test.tsfail before (spellcheck/throttling expected true) and pass after.Fixes #2693