Short description of your issue:

We would like to configure one of the ad calls on our AMP pages to accommodate multiple sizes. I mentioned this on Friday's Ads Working Group call and was told that this may be possible as long as we are comfortable with potential white space. The ad call we are interested in adjusting is the 1030x590 (displays at approximately 345x420). We would like to also be able to call a 300x250 to that ad slot.

How do we reproduce the issue?

1. View this page in an AMP environment
2. There should be a JPMorgan Chase ad that displays in the body of the article

What browsers are affected?

We would like this change to made across all browsers and device types

Which AMP version is affected?

This has always been an issue and affects all versions of AMP

cc @elitetruong