fix(CHAIN-4779): force sponsored gas mode for session-key sends - #24
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CHAIN-4779 Session-key USDV send can enter unsupported gas mode and fail
Using a P-256 session key to send USDV can fail during gas estimation with The transaction composer currently allows a session-key signer to select a pay-gas option even though the flow should require a sponsored transaction. Observed reverted transaction: Base explorer tx |
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Session-key signers only support the EIP-8168 sponsored ("free") gas
path; leaving gasMode on eth/usdv while a session key is selected let
USDV (and other) sends reach estimation/submission and revert.
- Force gasMode to 'free' via useEffect as soon as txIsSession is true.
- Hide the ETH / USDV gas options in the Gas Select for session-key
signers, leaving only Sponsored.
- Add a hard guard in doSignNative/doSponsoredSign that blocks and
surfaces an error if a session-key signer is paired with a
non-sponsored gas mode, as defense in depth against the UI state.
Co-authored-by: Cursor <cursoragent@cursor.com>
montycheese
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Summary
free) and hide unsupported Pay in ETH / Pay in USDV options.Fixes CHAIN-4779
Test plan
Made with Cursor