Benedikt Reiz

Are there any news on this? I found in local tests that setting `websocket_compression_options` has not effect on the transferred notebook json anyway.

Just for the sake of documenting this somewhere: I ran into this issue when I used the `log1p` function, which as a default writes `{"base": None}` to `uns`. However after...

Have you checked the `compression`parameter from `anndata.write_h5ad()`? It's turned off by default. Maybe seurat is compressing by default?