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5 changes: 4 additions & 1 deletion packages/core/src/internal/execution/jsonrpc-client.ts
Original file line number Diff line number Diff line change
Expand Up @@ -655,14 +655,17 @@ export class EIP1193JsonRpcClient implements JsonRpcClient {
// of blockchains using Besu. We explicitly exclude BNB
// Smartchain (chainId 56) and its testnet (chainId 97)
// as well as opBNB (chainId 204) and its testnet (chainId 5611)
// as well as Core (chainId 1116) and its testnet (chainId 1114)
// from this logic as it is EIP-1559 compliant but
// only sets a maxPriorityFeePerGas.
if (
latestBlock.baseFeePerGas === 0n &&
chainId !== 56 &&
chainId !== 97 &&
chainId !== 204 &&
chainId !== 5611
chainId !== 5611 &&
chainId !== 1116 &&
chainId !== 1114
) {
return {
maxFeePerGas: 0n,
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