My research so far suggests a tool like html2canvas would be our best bet. Only issue is that this tool and those like it seem unable to access cross origin data, which our embedded stream would be.
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.
HTML2Canvas does not render full div, only what is visible on screen?
1 project | reddit.com/r/codehunter | 8 May 2022
Why won't Chrome on iPhone download image from site? Instead it downloads blank 'document' file.
1 project | reddit.com/r/learnprogramming | 1 Feb 2022
Dev for hire? 😔
1 project | reddit.com/r/Wordpress | 13 Dec 2021
What website would allow me to turn a CSS image code into an image that I could download or open in a new tab?
1 project | reddit.com/r/learnprogramming | 3 Dec 2021
Building a Reverse Proxy with Cloudflare Workers
1 project | dev.to | 10 Nov 2021