LiFi Widget Incompatibility with Smart Contract Wallets (ZeroDev) — Throws Invalid yParityOrV value #433
Description
🛡️ Bug Report: Invalid yParityOrV value when Using LiFi Widget with Smart Contract Wallet (Account Abstraction)
Summary
When using the LiFi Widget with a Smart Contract Wallet via Account Abstraction (specifically ZeroDev's Smart Account), the widget throws the following error during swap attempts:
Invalid yParityOrV value
This issue does not occur when using a standard EOA (Externally Owned Account) with the same widget and setup.
Steps to Reproduce
- Initialize a Smart Contract Wallet using ZeroDev (ERC-4337 compatible).
- Use Dynamic as the wallet connector for the DApp.
- Embed the LiFi Widget in the app with default setup.
- Attempt a token swap through the widget.
- Observe the error:
Invalid yParityOrV value.
Expected Behavior
- The widget should support swaps for Smart Contract Wallets (Account Abstraction) without throwing signature-related errors.
- The
yParityOrVvalue should be properly handled or normalized in the underlying signing logic.
Additional Details
- Wallet Provider: ZeroDev Smart Account
- Connector: Dynamic Labs
- Error only occurs with Smart Contract Wallet, not with EOA.
- The issue appears related to signature format expectations — AA wallets often don't expose standard
eth_signbehavior, requiring different handling for transaction signing.
Suggested Considerations
- Improve compatibility of LiFi Widget with Account Abstraction wallets (ERC-4337).
- Ensure signature handling in the widget or SDK supports AA-specific flows.
- Possibly provide a flag or recommended approach for Smart Account environments.
Environment
| Tool | Version/Details |
|---|---|
| LiFi Widget | 3.21.3 |
| ZeroDev SDK | 5.4.26 |
| Dynamic Labs | 4.9.1 |
| Browser/OS | Chrome version 137.0.7151.120 (Official Build) (arm64) |
Happy to provide additional technical details or test beta fixes. Let me know how I can assist!