Strange behavior when using single_file on github

[TheRouce]

Parts of the ui are placed randomly across the page, note the "None" of the data div showing up, also the title is replaced with the background color of the ui title

On some github repositories, including this one, single_file archives are displayed improperly.

Firefox console:

Chromium console:

Methods to reproduce:

curl -X POST --location "http://localhost:5001/api/v1/pages" \
    -H "Content-Type: application/json" \
    -d "{
          \"url\": \"https://github.com/derfenix/webarchive\",
          \"formats\": [
            \"pdf\",
            \"single_file\"
          ]
        }" | jq .

Open page.html