Checkout flow breaks on Merch Direct powered sites

[pes10k]

The Merch Direct API created modal checkout dialog is busted, unusably, when shields are up.

Specifically, the "submit payment" button doesn't appear and the dialog is collapsed.

When shields are up:

Without shields:

To recreate:

1. Go to https://www.thisischon.com/products/65682-chon-lp
2. Click "Add to" button
3. Select "United States" and "standard" shipping (shouldn't matter specific values)
4. click "checkout"
5. Observed the next page is goofed

[ryanbr]

I'll need to debug it more; but blocking one of these url's will cause issues.

https://api.ipinfodb.com/
https://m.stripe.network/

[ryanbr]

Seems to affect many sites. (from a quick google) it'll be a generic whitelist.

https://www.jmtstore.com/
https://www.tokenhiphop.com/store

[ryanbr]

Okay, the easy fix here will be just allow all cookies rather than 3rd-party. which will fix this.