I want to modify the GeoServer preview page that brings up a simple OpenLayers page.

The GeoServer documentation is very rare: OpenLayers format=application/openlayers Just saying: 'Generates an OpenLayers HTML application.'

Where and how can I modify this page? For example, I want to expand the map preview.

1 Answer 1


If you want to modify how the default OpenLayers preview page works, you'll need to modify the GeoServer codebase.

Alternately, you can create your own standalone webpage. I don't recommend copying GeoServer's generated code because last I checked it was still using OpenLayers 2 (latest is OpenLayers 4).

  • 1
    Nowadays it's using OpenLayers 3, but yes, it's just a preview, not meant to be used as a base for a larger application. Jul 24, 2017 at 13:23

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