Style9 recognizes '@-ms-view-port' as a selector rule, and tries to parse the selector.
But @-ms-viewport is more like a media query, with no selector property in the object from PostCSS.
Use postcss-selector-parser to parse an object without selector property will throw an exception.
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@-ms-viewport { width: device-width; }
Style9 recognizes '@-ms-view-port' as a selector rule, and tries to parse the selector. But @-ms-viewport is more like a media query, with no selector property in the object from PostCSS. Use postcss-selector-parser to parse an object without selector property will throw an exception.