This page tests amp-inabox. Follow the instructions and check points.

Inabox above the fold

Check Point 1: Above the fold visibility tracking
Before any scrolling, you should see 3 failed network requests: visible, rootVisible and img2Visible. Also check their URL params.

Inabox below the fold, and nested in friendly iframe

Now scroll slowly...
Check Point 2: Below the fold visibility tracking
You should have seen another 2 failed network requests: visible, rootVisible when the 2nd iframe enters viewport. Then followed by img2Visible when the 2nd image in this iframe enters viewport.

Everything inabox

Check Point 3: AMP elements rendering for inabox
This is a long AMP document. You should see everything renders correctly. All check console errors.