gasPrice issue on xDAI

[aminlatifi]

Describe the bug
Transactions are not sent on xDAI network. It happens occasionally and on failure, this message appears as an error in the console related to gasPrice

The confirmation window is shown in Torus and I confirm, but the app stays in a pending state and the transaction is not created.

To Reproduce
It happens sometimes, but you can test it on our application https://staging.giv.giveth.io

Expected behavior

Screenshots

Desktop (please complete the following information):

• OS: MacOS
• Browser Chrome
• Version 97

Additional context
We pass an empty object or nothing as transaction options to contract calls using ethers contract.

[aminlatifi]

It sometimes works, but after a couple of transactions, the above issue happens again.

[jadbox]

I'm having the same issue on Polygon and Polygon Mumbai. It seems to be consistent for me. For reference I'm using Torus-embed through Onboard.js (although we're using an Onboard fork that uses the latest version of Torus-embed).

Version we're on:
"@toruslabs/torus-embed": "^1.20.2",

[jadbox]

I also tried forcing the dependency for "@toruslabs/torus.js" to "^4.2.6" without any luck.

[jadbox]

Oddly this issue only happens on Mumbai Polygon (80001) and not on Polygon Mainnet (137)

[aminlatifi]

Oddly this issue only happens on Mumbai Polygon (80001) and not on Polygon Mainnet (137)

I had the issue on Kovan and xDai as well.

[jadbox]

The only different I see between Polygon 137 and Testnet 80001 is the failure to fetch gas values.

Torus calls this API for Polygon successfully:
https://gas-api.metaswap.codefi.network/networks/137/suggestedGasFees

However for Testnet, the API gets a 404 error when calling to:
https://gas-api.metaswap.codefi.network/networks/80001/suggestedGasFees

Then the Torus-embed library raises the error:

Uncaught (in promise) Error: Invalid transaction params: specified gasPrice but also included maxFeePerGas, these cannot be mixed
    at getEthJsonRpcError

[kaptain-ti]

Also FUJI TESTNET for AVALANCHE is giving similar error:
https://gas-api.metaswap.codefi.network/networks/43113/suggestedGasFees
"Cannot read property 'getBlock' of undefined"