I, too, am still having this issue in Chrome and Chrome only. I don't use any proxy or VPN, so it cannot be an ISP problem, given it does work in Firefox on the same computer/network, no tunneling in operation. I still think it's a Chrome-caused problem. Thankfully, I was able to at least export the settings from the Firefox extension and import them to the Chrome extension as a workaround to load my locations.
As for using the
source website directly in Chrome, it loads the result without issue.
And proof the same extension function still works on Firefox, but still not Chrome: