chart.serve() ignores data transformers

[jakevdp]

import altair as alt

alt.data_transformers.enable('data_server')

from vega_datasets import data
cars = data.cars()

chart = alt.Chart(cars).mark_point().encode(
    x='Horsepower',
    y='Miles_per_Gallon',
    color='Origin',
).interactive()

chart.serve()

Examining the HTML from the above chart, we see that the data is not transformed.

[jakevdp]

Turns out we need

chart.serve(override_data_transformer=False)

This default option is meant to disable MaxRowsError in the common case... perhaps there's a less obtrusive way to do that?

[jakevdp]

I think given the intent of the keyword, we should introduce something like alt.data_transformers.set_max_rows(None) and use that function instead.