bug(markdown) language-all comments not working in Chrome

[yellis]

Describe the bug
The editor seems to support comments like but it's just not taking effect in Chrome (a users has shown it working in FF).

To Reproduce

1. MD mode, type in

<!-- language-all: bash -->
~~~
var "hello"
~~~

Switch to RT. Observe that the codeblock stays as "plaintext".

Expected behavior
All codeblocks should be set to the language set in that comment

Desktop (please complete the following information):
Windows 11 Chrome 103

Additional context
https://meta.stackexchange.com/a/380319/51