Field on the no proposition view

If you are a deflationist of sorts, you might reasonably toy with the thought that, when 'that's true' is said of an attempted assertion which misfires so badly that no proposition is expressed, then the purported endorsement of a saying misfires too. The suggestion naturally leads to the view that the Liar sentence doesn't express a proposition. Field briefly touches on the view at p. 132 of Saving Truth from Paradox, and brusquely rejects it (without mentioning any of its defenders):

I...