I haven't looked at the page for a while but it was working a couple months back. Now when I go there I can see my popup with text in it and the map container as well as the + and - signs. Basically everything is there except the actual map! It is just a grey background. Any ideas?
I am using the latest version css and js from can
https://unpkg.com/leaflet@1.7.1/dist/leaflet.css
https://unpkg.com/leaflet@1.7.1/dist/leaflet.js
some basic map code
var map = L.map('testmap').setView([51.505, -0.09], 13);
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);
L.marker([51.5, -0.09]).addTo(map)
.bindPopup('A pretty CSS3 popup.<br> Easily customizable.')
.openPopup();