[VancouverMan]

I only got part-way through the survey before moving on, but based on what I did see of it, it doesn't look like an alternative HTML-only/non-JavaScript version should be that hard to put together at all for future surveys.

Just do it on a single page, in one big form that's submitted at the end. Don't even bother with styling it.

If a version like that were available, I probably would've completed the survey because I could have more easily judged how long it would take to finish it.

[sylware]

I would recommend 2D semantic HTML documents (using a table), and no, HTML tables are not harmful (https://webaim.org/techniques/tables/ with a real life example https://iroiro.neocities.org/ ). People with visual impairment can still navigate easily (see webaim page above) with screen readers.

If you want to browse openstreetmap (have an instance on my home server with my email): https://www.rocketgit.com/user/sylware/lnanohtmltiledmap (could be used as a base).

[eric-burel]

How do you detect which version to serve in this case? Using User-agent server-side, or something else client-side? Or maybe letting the user decide using a separate website?