Uniswap interface is not compatible with 1559 type 2 tx

[crazybae]

Bug Description

We are developing a chrome extension-based wallet, called Dekey (www.dekey.app).
It fully supports coin/token transfer and Dapp-browsing in ethereum based chains including layer 2.

Recently, we have completed the development of EIP1559 type 2 tx functions and is testing in various Dapps including Uniswap in ropsten and rinkeby. The production build will be deployed in the chrome app store at the end of this week.

As you know, there is no 'gasPrice' field in the type 2 tx, instead 'maxPriorityFeePerGas' and 'maxFeePerGas' should be inserted. As shown in the attached image, Uniswap interface in ropsten still seems to require 'gasPrice' field in the tx result (delivered by a wallet) though the tx is processed well as a type 2 in the chain (see the following url).

https://ropsten.etherscan.io/tx/0x16a6a340df23f7f1978a5b54ff4e648c2c04eae4cf4a701024ac6ef73e7de715

Steps to Reproduce

1. Perform EIP1559 type 2 tx in Uniswap ropsten
2. You will meet the error like the attached image
3. See the tx result in etherscan

Expected Behavior
Uniswap interface should process the tx result differently depending on the tx type.

[moodysalem]

London hard fork coming to mainnet in a week or two, need to fix this ASAP, I think it's just an ethers upgrade

[moodysalem]

related
ethers-io/ethers.js#1610
ethers-io/ethers.js#1766

[moodysalem]

@crazybae would you mind testing the PR deployment preview? https://uniswap-interface-git-upgrade-ethers-eip1559-uniswap.vercel.app/

[crazybae]

I works perfectly. Thanks for your time and effort.
https://ropsten.etherscan.io/tx/0x11fa5739d60e4645487970783967482618c7aa903e8e23746b0c6154a888f567