- Browse e.g., https://tools.wmflabs.org/geohack/geohack.php?params=23.967534_N_120.946364_E
- On the map click "+".
OK, the map has wildly flew up. The "+" indeed zoomed the map, but our mouse is no longer over the plus button! We have to hunt down the new location of the plus button if we wish to zoom further.
Fortunately after we do, it stays put after that. No matter how many ++++ we hit.