fix(wallet): swallow ConnectorAlreadyConnectedError in widget dapp-mode connect race - #8002
fix(wallet): swallow ConnectorAlreadyConnectedError in widget dapp-mode connect race#8002limitofzero wants to merge 4 commits into
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository UI Review profile: CHILL Plan: Pro Plus Run ID: 📒 Files selected for processing (1)
WalkthroughThe widget updater now awaits dapp-mode connections. It ignores expected already-connected errors and logs normalized unexpected failures. Tests cover both paths. Three translation source references now point to the current execution-price component. ChangesWallet connection error handling
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to This change narrows a wallet connection race by handling the already-connected case while preserving reporting for unexpected failures; no actionable merge-blocking risk remains after normal checks and review. Suggested reviewers: Poem
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Inline comments:
In `@libs/wallet/src/updaters/WidgetStandaloneMode.updater.test.tsx`:
- Line 3: Remove logWallet imports, mocks, and logger call-count assertions from
the tests in WidgetStandaloneMode.updater.test.tsx, keeping only assertions for
observable non-logging behavior; delete any test cases that have no remaining
meaningful assertions after this cleanup.
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⚙️ Run configuration
Configuration used: Repository UI
Review profile: CHILL
Plan: Pro Plus
Run ID: 72cab8ba-5ae7-468e-914d-70e88c0fe946
📒 Files selected for processing (2)
libs/wallet/src/updaters/WidgetStandaloneMode.updater.test.tsxlibs/wallet/src/updaters/WidgetStandaloneMode.updater.tsx
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Summary
Fixes an unhandled promise rejection in the widget's dapp-mode wallet connection flow. In dapp mode,
WidgetStandaloneModeUpdaterfires an explicitconnectWalletById(COW_WIDGET_CONNECTOR_ID)on mount, but this races two other connection paths that also run on every iframe boot:enableReconnect: truein widget mode → wagmireconnect()).connect/accountsChangedevents, which can connect wagmi without any explicitconnect()call.If path 1 or 2 sets wagmi's
currentconnector first, the explicitconnect()call in path 3 hits wagmi's internal guard (connector.uid === state.current) and throwsConnectorAlreadyConnectedErrorbefore any state change. Since the call wasn't awaited/caught, this became an unhandled promise rejection that silently abandoned the connect attempt — contributing to the widget occasionally showing a disconnected/"Connect Wallet" state while a connection actually exists underneath, and reported externally in https://gist.github.com/Jeday/e54affaec325e9b0ee164d689b40920b (referencing the older cowswap#7502 symptom class).connectWalletById's call site now catchesConnectorAlreadyConnectedErrorand no-ops (another path already connected it, nothing left to do), while any other unexpected error is still surfaced vialogWallet.errorinstead of disappearing.To Test
Open the
widget-configuratorpreview deployment for this PR, set Basics → Mode → Dapp mode (host page owns the wallet connection).Connect a wallet on the configurator page itself (not inside the widget iframe — dapp mode shares this provider into the widget).
topto the widget iframe's frame, and reload the page (F5) several times in a row (this races auto-reconnect against the explicit connect on every fresh boot, matching the persistedcowswap-wallet-cow-widget...connection from step 2).Uncaught (in promise) ConnectorAlreadyConnectedErrorappears in the iframe's console on any reload.console.error(Failed to connect widget connector) rather than an uncaught rejection.Note: this addresses one specific race in the wallet-connect flow (loops back to the gist's first documented interleaving). A second, separate interleaving described in the same gist — where a slow/lost
eth_accountsresponse over the postMessage bridge causesreconnect()'s completion to hard-reset wagmi todisconnectedand clobber an in-flight explicit connect — is a different mechanism and is not addressed by this PR.Summary by CodeRabbit