Content erratically doesn't render

[tigerhawkvok]

Here's a live example:

https://papayapythons.com/

Refreshing the page sometimes fails to render the main content node, with the #mainContainer element containing no content whatsoever.

Sometimes it's fine.

Disastrous, to say the least. The code has been vulcanized and inserted on the page.

When it bugs out, I inject the HTML it scrapped again, but it goes away yet again on a scroll.

[blasten]

I could not reproduce the issue, was this issue fixed recently? Please provide a jsbin or repro steps.