failed to serialize the context_free_actions

[crazybits]

Version of EOSJS
eosjs@master

Describe the bug
failed to serialize the context_free_actions,looks like eosio.null has no abi on mainnet, but the eosjs try to fetch abi.

To Reproduce

await api.transact({
            actions: actions,
            context_free_actions: [{ account: "eosio.null",name: "nonce",authorization: [],data: "010f"}],
        }, { blocksBehind: 3, expireSeconds: 3600 });

err | 2020-11-24 13:34: Error: fetching abi for eosio.null: Read past end of buffer
2|app | 2020-11-24 13:34: at SerialBuffer.get
/node_modules/eosjs/src/eosjs-serialize.ts:182:15)
2|app | 2020-11-24 13:34: at SerialBuffer.getVaruint32 (/node_modules/eosjs/src/eosjs-serialize.ts:273:28)

Desktop (please complete the following information):

• OS: macOS Catalina

[sanaraufx]

This is a constraint on how mainnet was configured. Please try on your personal network and verify if eosjs works as expected with the correct ABI. Thanks.

[o-alexandrov]

Having the same issue in testnet.
Btw, nonce doesn't exist in the master branch in tests

• only exists in the legacy branch with the latest update in 2018

Has the recommended approach to make transactions unique changed?

• probably, adding nonce as a property to data within one of the transaction's actions should be fine

No, it's a bug in eosjs. See #1009