1899295 - Using `light-dark()` in relative color syntax for base color isn't supported in Firefox (but is in Safari TP)

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect)

Description

[Nicolas Chevobbe [:nchevobbe]]

Steps to reproduce

1. Go to data:text/html,<meta%20charset=utf8><style>&%20{%20color:%20rgb(from%20light-dark(red,blue)%20r%20g%20b);%20}</style>Hello

Expected results

Hello is red

Actual results

Hello is black

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FWIW, this is supported in Safari TP, but not in Chrome.
Note that we might miss wpt test for relative color syntax + light-dark()

Comment 1

[Jonathan Kew [:jfkthame]]

I guess this must be pretty new in Safari TP, too; it doesn't work there for me, but I'm not entirely up-to-date on this machine.