[token-js] InitializeMint without FreezeAuthority breaks decodeInitializeMintInstruction

[devDesu]

Example tx: 2LQT3oZSoAyrzAC59wfMfbiZtF74YPcw5rQuaAmBu1FhuVe1f3CZoms8wKETJYVx8q9Bi8wT8v337iMDg4PJysF2

The problem is caused by exact span check here

Proposed solution: check if length of the data is equal to 35 (data with empty freeze authority) or 67 (freeze authority exists) bytes

[joncinque]

Thanks for reporting! This is indeed an issue, and your proposed solution makes sense.

[Danver97]

+1!

This occurs also with InitializeMint2. Example tx: 5VTAodQ23NbVBL4BzQfbsSW7VcCa4h2wuW9eo2ACxhbr2pA4PAUM6Q4ffhH5qgm6xxZGp8c1CruvEgQGR2qecqdK.

The length of data is 35, but the decoding function expects 67.

[Danver97]

Same applies in decodeSetAuthorityInstruction. Expected 35, actual 3.
And everywhere else here: https://github.com/search?q=repo%3Asolana-labs%2Fsolana-program-library%20COptionPublicKeyLayout&type=code.

[Danver97]

PR #7627 should now fix everything