Purpleair.com map doesn't display on iPhone The webpage Purpleair.com contains a link to a map displaying realtime reports of air quality. The map is located here. The map displays correctly on Safari 13.1.2 running under macOS Catalina.
The map doesn't display in iOS. I can navigate to the Purpleair main page with iOS Safari, but after selecting the &quot;Map&quot; link, the map itself does not appear. Instead, the screen redraws and displays this:

What might I do to enable the map to be viewed on the iPhone? The iPhone is an SE (2d generation), running iOS 13.6.1. Location Services on the iPhone is enabled for Safari.
The solution was to enable Java Script. In Settings &gt; Safari &gt; Advanced &gt; Enable Java Script, move the switch to the right. The map loaded immediately.