Weird heading id generated for MD heading with curly braces

[fflaten]

What version of astro are you using?

1.9.0

Are you using an SSR adapter? If so, which one?

None

What package manager are you using?

npm

What operating system are you using?

Linux

Describe the Bug

Using curly braces in a heading in a .md file generates an function-like heading-id.

Example:

# Some weird heading like { }

<!-- becomes -->
<h1 id="{$$slug(&#x60;Some" weird="" heading="" like="" ${="" }&#x60;)}="">Some weird heading like { }</h1>

Repro: Build and check /dist/markdown/index.html

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-cbd34s

Participation

• I am willing to submit a pull request for this issue.

[delucis]

The code that injected the strange $$slug string was removed as part of #5785, so this will be fixed in the next 2.0 beta release. Not sure if we need to backport anything to v1 or if it’s OK to say, “Upgrade to v2 to get the fix.”

[fflaten]

Great, thanks!

Not sure if we need to backport anything to v1 or if it’s OK to say, “Upgrade to v2 to get the fix.”

I'd vote for v2-only until more reports. Easy upgrade path and not critical.

[delucis]

Cool, I think I agree, so will close as fixed. Thanks again for raising this and #5780 🙌