I'm in the middle of transitioning away from Google Maps and to Leaflet due to the recent change in Google Maps usage policy. I've converted all but one of my map pages, but unfortunately, that one is the most popular.
I must be missing something obvious, because the image overlay displays correctly on Google Maps, but taking the exact same bounds/images and putting them into Leaflet causes a shift. I've read in other answers that such subtle shifts are caused by coordinate conversion problems, but everything I'm reading says that Google Maps and Leaflet use the same coordinate system. What am I missing?
Here's an example of the Google Maps page: https://www.rabbitears.info/contour.php?appid=8a441da96f4148f5b2c9cf6212b6c0ea&site=1&map=Y
And here's an example of the Leaflet page: https://www.rabbitears.info/contour_leaflet.php?appid=8a441da96f4148f5b2c9cf6212b6c0ea&site=1&map=Y
You can see the overlay has shifted slightly northward, enough so that the image (television station coverage area) no longer lines up with the terrain.