It seems not work in embed iframe such as codepen codepen.io/qcgm1978/pen/gJoOQR
I've tried your codepen with Firefox 67 and it worked both with the dark system setting and with my add-on. So I cannot reproduce the problem here…
Maybe the chrome doesn't work.
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It seems not work in embed iframe such as codepen codepen.io/qcgm1978/pen/gJoOQR
I've tried your codepen with Firefox 67 and it worked both with the dark system setting and with my add-on. So I cannot reproduce the problem here…
Maybe the chrome doesn't work.