I was getting the following warning in console and this patch seems to have fixed it.
core:a-assets:warn Cross-origin element (e.g., <img>) was requested without `crossorigin` set. A-Frame will re-request the asset with `crossorigin` attribute set. Please set `crossorigin` on the element (e.g., <img crossorigin="anonymous">)
I was getting the following warning in console and this patch seems to have fixed it.