ZKSync's EIP-1559 Support

[bxpana]

Discussed in #610

^{Originally posted by FelixFan1992 June 26, 2024}

Environment

Testnet

Provide a brief description of the functionality you're trying to implement and the issue you are running into.

In this document, it means that
In ZKsync Era, while the EIP-1559 transaction format is supported, the maxFeePerGas and maxPriorityFeePerGas parameters are not utilized.
Can you explain more about this? Does it literally mean that only the base fee is supported? If so, any plans to start using them?
If a tx is sent with only legacy gas price value, will zksync treat it as a base fee value?

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