Form always cancels page cache, can't find a fix

I've tried every module that comes with Authcache and I'm having a problem with a custom form that I'm rendering stopping the page from getting cached. If I remove the form, it works. It's just a checkbox on a product and I'm using drupal commerce and I have the authcache commerce module enabled along with the form one. I have other forms working but something about this form is stopping it and the error messages aren't helping me understand what it is that it doesn't like.

Status
Cache Status: "Caching CANCELED"
Message 1: "Canceled: Value element entity_type contained in the cacheable form properties_compare_add_form_commerce_product_1. Please enable a suitable Authcache integration module for that form or file a support request."
Page Render Time: "5554.83 ms"
Page Age: "7 seconds"
Settings
Cache Class: "MemCacheDrupal"
Cache CID: "https://store.com/"
Debug Users: [""]
Cache User: 0
Cache Backends: "authcache_builtin"
Active Backend: "authcache_builtin"
Authcache Key: "https://store.com"
P13n Clients: "Ajax, ESI"
Active P13n Clients: "Ajax"
HTML/JavaScript time: 144 ms

entity_type is set to 'commerce_product'. Is that the issue? Is that maybe the wrong setting?