struct _LoadTileData *load = g_new0(struct _LoadTileData, 1);
load->path = grits_wms_fetch(elev->wms, tile, GRITS_ONCE, NULL, NULL);
+ if (!load->path) return; // Canceled/error
g_debug("GritsPluginElev: _load_tile: %s", load->path);
load->elev = elev;
load->tile = tile;