Right now if you have a CSS error in a rule that gets expanded (background, margin, etc.) it will fail and return undefined. This is a simple fix to drop out early if the expander returns a falsey value.
You can test this by using a color name that doesn't exist.
Right now if you have a CSS error in a rule that gets expanded (
background
,margin
, etc.) it will fail and returnundefined
. This is a simple fix to drop out early if the expander returns a falsey value.You can test this by using a color name that doesn't exist.