TypeError: Cannot read property 'search' of undefined

[PanJiaChen]

When I upgrade to v4.1.5, the following error occurs.

I guess it can be caused by the following code:

cssnano/packages/postcss-merge-longhand/src/lib/decl/borders.js

Lines 376 to 379 in 1ebc319

	const wscProp = rules.filter(r => r !== lastNode)[0];
	if (!isValueCustomProp(values[i]) || isCustomProp(wscProp)) {
	return;
	}

[andyjansson]

Can you provide a minimal set of code to reproduce the issue?

[PanJiaChen]

@andyjansson online demo

[alexander-akait]

@andyjansson find:

.a {
    border: 2px solid #fff;
    border-color: inherit;
}

[andyjansson]

Will look at this after work.

[PanJiaChen]

Looking forward to the release of a new version 😄

[unlinking]

@andyjansson

postcss-merge-longhand installed from npm,

"version": "4.0.7"

borders.js line 106 seems to be old, missing fixed code, something wrong ???

const isValueCustomProp = value => !!~value.search(/var\s*(\s*--/i);

[andyjansson]

@lulucas It was merged yesterday. It hasn't been published yet.