I'm not sure any short cage rear derailleur can handle more than a 32T big cog. I've used 28T cogs with short cage RDs from Shimano and Suntour (older bikes).
But when I switched my 1993 Trek 5900 to an 11-32 cassette I replaced the short cage Dura Ace RD with an older Shimano Deore LX long cage. Works fine. Heavier but that's okay.