Mapproxy shows tiles in wrong position

Question

I am using Mapproxy to display map http://maps.stamen.com/toner/#3/49.78/-4.04. But the tiles are shown in wrong position. For example:

Map without zoom:

Map with one level zoom:

More zoomed, the image looks even more odd.

Mapproxy configuration:

layers: 
  - name: StamenToner
    title: StamenMap
    sources: [stamen_cache]  

caches:
  stamen_cache:
    grids: [stamen_grid]
    sources: [stamen_wmts]

sources:  
  stamen_wmts:
    type: tile
    url: http://tile.stamen.com/toner/%(z)s/%(y)s/%(x)s.png
    grid: stamen_grid

grids:
    stamen_grid:
        srs: 'EPSG:3857'
        origin: 'nw'
        tile_size: [512, 512]      

I have no idea why the tiles are in wrong position when zoomed. Any suggestions.

Answer 1

This works for me with MapProxy==1.13.0

layers:
  - name: StamenToner
    title: StamenMap
    sources: [stamen_cache]

caches:
  stamen_cache:
    sources: [stamen_tiles]

sources:
  stamen_tiles:
    type: tile
    url: http://tile.stamen.com/toner/%(z)s/%(x)s/%(y)s.png
    grid: GLOBAL_WEBMERCATOR

Note: Check the URL parameter order. /z/x/y rather than /z/y/x; according to the docs:

Many applications and libraries understand the notion of map URL templates. These are ours:

• http://tile.stamen.com/toner/{z}/{x}/{y}.png
• http://tile.stamen.com/terrain/{z}/{x}/{y}.jpg
• http://tile.stamen.com/watercolor/{z}/{x}/{y}.jpg