amp-auto-lightbox.js unexpectedly loaded on image-less page

[ithinkihaveacat]

The amp-auto-lightbox.js file is unexpectedly loaded from pages that do not directly reference it (or use any images).

To reproduce:

1. Load https://separated-mollusk.glitch.me in Chrome Desktop (also reproduces on Firefox)
2. Open devtools network tab and reload.

Actual:

Three resources are loaded: the HTML (expected), v0.js (expected) and amp-auto-lightbox-0.1.js (unexpected).

Expected:

Only two resources are loaded.

[photocoder]

You can use "data-amp-auto-lightbox-disable" option... But I'm waiting for opt-out possibility by this option: doc level opt-out of amp-auto-lightbox

[alanorozco]

Yup, loads for every page. Closing as dupe of #26452