Are data URLs supported for images in Markdown documents?

[philbo]

I have a Markdown document with an image as a base64 encoded data URL which I'd like to convert to a Word document. However the image isn't included, only the link text. Does Pandoc support this feature? I have tried running with --embed-resources but without success. There is a note in the documentation suggesting some support - but maybe only for HTML documents.

Markdown input:

![image link](data:image/png;base64,iVBORw0KGgoAAA.....)

Word Doc output:

image link

[philbo]

The issue was running Pandoc with --sandbox=true. I'm guessing it's protecting against some attack vector from data URIs. Disabling sandbox mode worked as expected - tested with pandoc 2.19.2. The error wasn't visible as I was using the pypandoc wrapper

[jgm]

Correct - with --sandbox, pandoc's markdown reader can't do any IO, including web requests.