I am using a GeoServer to calculate dynamically a heatmap on points coming from a postgresdatabase with the SLD style presented there : https://docs.geoserver.org/stable/en/user/styling/sld/extensions/rendering-transform.html
However, if the result is okay in OpenLayer preview in GeoServer, the WMS tiles are totally wrecked when requesting them from Leaflet like here :
I kind of understood that the problem was due to tiles calculating only points in their tile, leading to this, and that single-tile mode was a solution.
However, while OpenLayers provides the possibility to request WMS in single tiled mode, Leaflet does not.
There are plugins developed here and there but I am working with VueJS so I can't use them directly.
As a consequence I am looking for a way in GeoServer to correct this behavior but i don't know if there is a way and how to do it. I tried to add tiled=false in parameters of the URL but it doesn't seem to work and the tile caching tutorials are aimed at saving tiles which is different from what I want.