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Fixed issue with @support( and @support not( being invalid #18

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Fixed issue with @support( and @support not( being invalid #18

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4 changes: 4 additions & 0 deletions cssmin.php
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Original file line number Diff line number Diff line change
Expand Up @@ -325,6 +325,10 @@ private function minify($css, $linebreak_pos)
// @media screen and (-webkit-min-device-pixel-ratio:0){
$css = preg_replace('/\band\(/i', 'and (', $css);

// Put the space back in for @support tag
+ // @supports (display: flex) and @supports not (display: flex)
+ $css = preg_replace('/\b(supports|not)\(/i', '$1 (', $css);

// Remove the spaces after the things that should not have spaces after them.
$css = preg_replace('/([\!\{\}\:;\>\+\(\[\~\=,])\s+/S', '$1', $css);

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