`og.image.secure`

Default: warn
Plugin: og

The og:image is an absolute https:// URL.

Why: Many apps only load preview images from absolute https:// URLs, so a relative or http:// image does not show.

When off: any og:image URL passes.

<!-- ✗ Fails -->
<meta property="og:image" content="/og/about.png" />

<!-- ✓ Passes -->
<meta property="og:image" content="https://example.com/og/about.png" />

References

The Open Graph protocol: An image URL, with og:image:secure_url for HTTPS. The rule warns.