Unable to save SVG in Jupyter Cells Output

[shriaviator]

Environment data

• VS Code version: 1.56.0
• Jupyter Extension version (available under the Extensions sidebar): v2021.6.811652604
• Python Extension version (available under the Extensions sidebar): v2021.5.829140558
• OS (Windows | Mac | Linux distro) and version: Pop_Os 20.04 LTS
• Python and/or Anaconda version: 3.8.8
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): conda
• Jupyter server running: Local | Remote | local

Expected behaviour

• Click save to SVG : File saves to svg

Actual behaviour

Nothing Happens

Steps to reproduce:

[NOTE: Self-contained, minimal reproducing code samples are extremely helpful and will expedite addressing your issue]

import altair as alt
import pandas as pd

source = pd.DataFrame({
    'a': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I'],
    'b': [28, 55, 43, 91, 81, 53, 19, 87, 52]
})

alt.Chart(source).mark_bar().encode(
    x='a',
    y='b'
)

• Vscode / jupyter : Save as PNG works as expected and saves output
• Jupyter-Lab : save as svg works as expected

Logs

Output for Jupyter in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Jupyter)

Nil Logs 

[IanMatthewHuff]

@shriaviator Thanks for the report here, I tested it out, and I see the same issue as you do.

Just to note here. In vscode-insiders we are rolling out a new UI based on VS Code's new Native Notebook support. I just went and checked in it and this scenario does work there and I can save a SVG.

We may be unlikely to fix this in the old UI as this new UI will be replacing it in upcoming releases.

[greazer]

Thanks for your feedback. This issue will be addressed once VS Code adds native support for editing notebooks. Please see microsoft/vscode#91987. You can experiment by using VS Code insiders, which defaults to the new notebook experience.