URL not working in Show Floating WebView

I have a touchbar button which will open a Floating WebView to show me the weather.
The website have had an update and now it does not work with the new URL.
I suspect it is because of a special character in the URL.

The URL is:

The URL works fine in Safari.

And the URL works in BTT if I url-encode it like this:

But I think if it works in Safari, it should work in BTT.

BetterTouchTool : 3.176 (1354)
Model Identifier : MacBookPro13,3
System Version : macOS 10.14.6 (18G87)

thanks for reporting, I'll look into that.