Improve rewriting of https://maryklann.wixsite.com/hist110/post/module-1-course-introduction in Via3

[mkdir-washington-edu]

Describe the bug https://maryklann.wixsite.com/hist110/post/module-1-course-introduction is a free Wix site with embedded images, polls, and a comment section. These three embedded objects are not working when put through Via. Specifically:

• Images come through blurry
• Polls to not embed
• The comment section does not work.

Important I was not able to reproduce the blurry images, or at least the images began as blurry and then came into focus, presumably as the page loaded.

Talking to the user, the images are the most important issue. Polls can be linked to, but would be a nice-to-have. The comment section is unnecessary if she uses Hypothesis with the site.

To Reproduce Steps to reproduce the behavior:

1. Go to https://maryklann.wixsite.com/hist110/post/module-1-course-introduction
2. Go to https://via.hypothes.is/https://maryklann.wixsite.com/hist110/post/module-1-course-introduction
3. Compare the pictures, embeded polls, and the comment sections.

Expected behavior Ideally the pictures, and maybe the polls, behave in Via as they do outside Via.

Screenshots Without Via:

With Via:

Desktop (please complete the following information):

• Mac OS Mojave 10.14
• Chrome 84

Additional context https://hypothesis.zendesk.com/agent/tickets/12079