On Tue, Feb 23, 2021 at 11:23 PM Neil Saunders <
[email protected]> wrote:

> I’m creating an isolated workspace for the data. The styles are not
> assigned to a workspace so they can be used by multiple isolated
> workspaces. No extra plugins. No security changes at this point.
>

Ah, that explains it. The layer preview GetMap requests are using the
global WMS endpoint, if the style being edited is not in a workspace
Workspace isolated layers are not reachable there (they are only from the
workspace specific service).

Isolated workspaces usage is pretty uncommon, typically used to publish the
same INSPIRE theme multiple times from the same server (or so I hear, I
never used them myself).
Not surprised this did not come up before.

Can you write a fix? If so it would be in this area:
https://github.com/geoserver/geoserver/blob/e701004e988a8d0a9b7d993090c9a96dcf155e12/src/web/wms/src/main/java/org/geoserver/wms/web/data/OpenLayersPreviewPanel.java#L202

Not entirely trivial mind, the code is already trying to setup a workspace
specific service if the style is in a workspace, it should
also try to recognize the possibility of using a layer (and then check its
workspace), or layer group that is in a workspace (but it might also not
be).

See also https://github.com/geoserver/geoserver/blob/master/CONTRIBUTING.md

Regards, Andrea Aime

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