The 'Visit' command linked in the 'Chunks' section of the website teleports the user to the coordinates listed, instead of the chunk coordinates.

Example command: /observable tp minecraft:overworld position -62 128 4 -- which is pasted from the 'Chunks' section -- should teleport to the chunk -62, 4 but instead teleports to the block -62, 128, 4

Web UI code should be fixed now to give the right command. Let me know if you're still seeing the issue.