Incorrect comma added on css file save for link to @fontface files

When I save my css file with a link to the @font face file, a comma gets added which breaks the link:

Before save on Wappler:

Screenshot 2022-01-20 at 08.16.54821×486 48.2 KB

After save on Wappler:

Screenshot 2022-01-20 at 08.17.14789×505 43.9 KB