Fullpage Domo Card

I'm developing a new card and can't figure out how to get the fullpage setting in my manifest.json file to work.  I have fullpage: true specified, but the sizes are still being used to make the iframe container in Domo a specific width and height.

I've tried everything I can think of.  I've excluded sizes with fullpage, which uses 1x1 (expected behavior).  I've tried specifying fullpage in different places in the manifest object, which shouldn't (and doesn't) make a difference.  Has anyone actually gotten this to work?  Here's my (slightly redacted) manifest:

 {
   "name": "App Name",
   "fullpage": true,
   "version": "1.0.0",
   "size": {
     "width": 4,
     "height": 6
   },
   "mapping": [
     {
       "dataSetId": "********-****-****-****-************",
       "alias": "myalias",
       "fields": [
         {
           "alias": "myfieldalias",
           "columnName": "Column Name"
         }
       ]
     }
   ],
   "id": "********-****-****-****-************"
 } 

I also attached a screen shot of the container getting applied a 930x1700 height.  That maps to my sizes of 4x6 (930x1700 according to the documentation)

Thanks in advance!