Firefox warning: empty gid used as component in glyph

Problem description

Firefox displays a couple of warnings in the developer console when using this font.

Examples below are from visiting https://www.recursive.design:

downloadable font: glyf: empty gid 1 used as component in glyph 2 (font-family: "RecVF" style:normal weight:300..1000 stretch:100 src index:0) source: https://www.recursive.design/assets/fonts/Recursive_VF_1.085.woff2

downloadable font: glyf: empty gid 1 used as component in glyph 822 (font-family: "RecVF" style:normal weight:300..1000 stretch:100 src index:0) source: https://www.recursive.design/assets/fonts/Recursive_VF_1.085.woff2

To Reproduce
Steps to reproduce the behavior:

Launch Firefox
Navigate to https://www.recursive.design/
Open developer console ([Cmd]+[Opt]+K)

Environment (please complete the following information):

OS: macOS 14.6.1
Browser: Firefox 133.0 (aarch64)

Hmmmm...
gid 1 is the space (the Space character which is of course empty)
glyph 2 is the nbspace (No-break space)
which has the space as a component (linking their width)
glyph 822 is hyphen_space_brktleft_space_brktright.code
which appears to be a coding ligature - which includes the space

So the warning, while correct, does not appear to be cause for concern.

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Firefox warning: empty gid used as component in glyph #539

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Firefox warning: empty gid used as component in glyph #539

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kenmcd commented on Dec 9, 2024

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