getFeeData returns null gasPrice on Polygon

[0xAndoroid]

Ethers Version

6.7.0

Search Terms

gas, polygon, gasPrice

Describe the Problem

Calling JsonRpcProvider.getFeeData() on Polygon (chain id 137) network returns null in gasPrice parameter.
maxFeePerGas & maxPriorityFeePerGas have correct values.

On other post-EIP1559 networks (for ex. Ethereum Mainnet) all fields have values.
I've tried using different RPC.

On ethers@6.6.4 everything works correctly.

Code Snippet

const ethers = require("ethers");

const provider = new ethers.JsonRpcProvider("https://polygon.llamarpc.com");

provider.getFeeData().then((feeData) => {
  console.log(feeData);
// FeeData {
//   gasPrice: null,
//   maxFeePerGas: 85220454578n,
//   maxPriorityFeePerGas: 36381437948n
// }
});

Environment

Altcoin - Polygon, node.js (v12 or newer)

Environment (Other)

No response

[ricmoo]

Thanks! I already have this fixed locally and just have a few more things to commit and I’ll get this into the next patch. :)

[ricmoo]

Added in v6.7.1. Let me know if you still have any issues.

Thanks! :)