fix(app): clean up online/offline listeners on Browse unmount - #7213
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mergify[bot] merged 1 commit intoAug 20, 2026
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Browse.vue registers window 'online'/'offline' listeners but never removes them. Since only LibraryPage is kept alive by the router, Browse unmounts every time the user navigates away (e.g. into a project) and remounts on return, leaking a new pair of closures (and pinning the whole component scope) on window each time. Over a browsing session this accumulates continuously.
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Note This changelog has been baked. Any further edits will not be reflected. Pull request changelogAppAddedChangedDeprecatedRemovedFixed
SecurityWebsiteAddedChangedDeprecatedRemovedFixedSecurityHostingAddedChangedDeprecatedRemovedFixedSecurity |
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suspicious of the formatting of the PR description looking generated... but this fix does look correct so I'll merge |
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This pull request spent 7 minutes 56 seconds in the queue, including 6 minutes 49 seconds running CI. Required conditions to merge
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Aug 20, 2026
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Summary
Browse.vueregisterswindow.addEventListener('online'/'offline', ...)but never removes the listeners.LibraryPagealive via<KeepAlive include="LibraryPage">(App.vue), soBrowse.vueunmounts every time the user navigates away (e.g. into a project) and remounts on return.window, pinning the whole component setup scope from being garbage collected. Over a browsing session this accumulates continuously, contributing to reports of high/growing memory usage while browsing mods on Linux (related: Linux-specific performance, graphical, or crashing issues [MEGA-ISSUE] #3057).Fix
Store the handlers in named refs, remove them in
onBeforeUnmount, matching the cleanup pattern already used elsewhere in the app (e.g.ContextMenu.vue,QuickInstanceSwitcher.vue).Test plan
addEventListener/removeEventListenerpairs were introduced