on this page.
https://vanyadesigns.com/?page_id=808&preview=true
near the bottom of the page we’ve placed iframes for both a vimeo and youtube version of a video.
the videos width varies randomly.
looking at inspect element the issue seems to be the body tag within the iframe, but that seems impossible for such large video providers to have such an error in their iframes.
Conversely however it seems impossible that the problem would be originating from our site as width jumping of the two iframes is not synchronised, the iframes are always the same size and the iframes are not allowing js from the site to execute as they are cross-origin.