[OpenLayers-Users] Geoserver GWC layers plotting offset at some zoom levels.

[Phil Scadden]

I have GWC tile caching turned on for a layer in geoserver 2.7.1.1 
(direct integration turned on), then at some zoom levels, it plots 
displaced from where it should be. Turn GWC off for the layer, refresh 
browser, and it plots okay. This when calling as WMS layer from 
Openlayer 2.13-1 master. I remember this being an issue back in 2012 and 
issue https://github.com/openlayers/openlayers/issues/688 is still open. 
I am not doing any pre-seeding. Problem only occurs at some zoom levels.
A request looks like:

http://myserver/wms?LAYERS=mylayer&TILED=true&TRANSPARENT=true&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&FORMAT=image%2Fpng&SRS=EPSG:3857&BBOX=18628621.034844,-6521221.593125,18785164.06875,-6364678.5592188&WIDTH=256&HEIGHT=256

Note the EPSG:3857 - the tileset in GWC is 900913 but I am guessing the 
equivalence is handled.

Is this still the maxextent playing badly?

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