fix: dismiss camera on unmount and prevent duplicate scans#541
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bra1nDump merged 1 commit intoslopus:mainfrom Apr 13, 2026
Merged
fix: dismiss camera on unmount and prevent duplicate scans#541bra1nDump merged 1 commit intoslopus:mainfrom
bra1nDump merged 1 commit intoslopus:mainfrom
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…lopus#45) Camera stayed active on iOS after scanning a QR code because dismissScanner was only called inside the URL pattern check with no cleanup on effect unmount. Adds useRef guard to prevent duplicate scan processing, try/finally to ensure guard reset, and dismissScanner in useEffect cleanup.
leeroybrun
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Feb 14, 2026
Ports: slopus/happy#541 (full) Refs: slopus/happy#541 Upstream-PR: slopus/happy#541 Credit: @dzlobin
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Summary
useRefguard to prevent duplicate scan processing from rapid barcode eventstry/finallyso the guard resets even ifprocessAuthUrlthrowsuseConnectAccountanduseConnectTerminalhooksRoot Cause
dismissScanner()was only called inside the URL pattern check within the scan handler. If the component unmounted before or without a successful scan, the camera stayed active. Additionally, multiple barcode events could fire before the first finished processing.Closes #45
Test plan
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