0x call data after transaction Speed Up on Ethereum (Dropped & Replaced)
ohld opened this issue · 2 comments
Hey!
One user of your wallet tried to call swap contracts via our website:
https://etherscan.io/tx/0x6f494884fcd389413c1e53ed966d49d89e90853227eedab750d07011add681e5
The transaction stuck because of the low gas price and then he/she decided to speed up it. As a result, the call data become empty:
https://etherscan.io/tx/0x8fa842a7ce802a2bad57a71d2232f35554a92e3fe43d0850cf6a3e64c527a77f?from=trustee
This is definitely a bug with your wallet since this is the case we see only with TrusteeWallet users.
One more question to think of:
Your user lost his $122 because after the speedup he transferred tokens to a XY Finance contract which doesn't have the ability to withdraw tokens from balance if they were sent with 0x call data. Who will refund tokens to a user? We don't have any contracts - our website just gives a simple UI to call other contracts. XY Finance contracts just don't expect 0x call data and don't have refund methods for it.
By the way, Via Protocol is an aggregator for a huge number of bridges/dexes across 15+ blockchains. We have JS SDK which may be useful for your wallet.
first of all = 0x data is not one that is sending tokens as token transfer is call of function that is actually posted in data field of transaction... as we have a lot of users who is using Trustee for tokens transfer etc - and speeding up - i dont think its usual bug, but i will check.
also please check provide first transaction data (its already not in blockchain) and add some logic on default "sendToAddress" as its simple revert function
fixed ui a little bit - tested for a while now, so could be closed