markdown.styles doesn't support HTTPS URLs

[stankovictab]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.66.2
• OS Version: Kubuntu 21.10

Steps to Reproduce:

1. Edit markdown.styles with a URL starting with HTTPS, to a .css file, for example, I have a public .dotfiles git repo in which I have a .css file for styling markdown previews - getting the URL of the raw file and pasting it in doesn't work, I get the "Could not load markdown.styles..." error.

[mjbvz]

Have you tried hosting somewhere else? I don't think raw.github can be used for stylesheets like this

[stankovictab]

I've tried PasteBin and GitHub Gist, none of them seem to work.
Do you have any recommendations?

[mjbvz]

If you open the dev tools to investigate further, you should see:

used to apply style from 'https://XXX' because its MIME type ('text/plain') is not a supported stylesheet MIME type, and strict MIME checking is enabled.

The sites all return their content as plaintext, likely because they don't want to be used as a generic CDN for stylesheets and script. So I don't think this has anything to do with https, it's just how the sites you are trying to use to host the contents are configured

Closing this as by-design

[stankovictab]

Would be nice if this was mentioned somewhere in the docs, because as it stands this feature is very limiting.
At the very least mention an example of a hosting service that would return the right content type, we shouldn't need to guess.