Works in FF for me. It's rather resource hungry, maybe an OOM? Judging from RAM consumption I'm guessing it doesn't utilise GPU, but maybe it does and didn't fit in mine.
Same for me. I get the following messages in the console:
Loading failed for the <script> with source “https://streets.gl/js/index.js”. streets.gl:1:940
A resource is blocked by OpaqueResponseBlocking, please check browser console for details. script.js
Loading failed for the <script> with source “https://analytics.streets.gl/js/script.js”. streets.gl:1:815