Handle caught 'SyntaxError' errors

src/index.js

@@ -38,11 +38,15 @@ module.exports = options => ({
       )
       return extractedCSS
     } catch (e) {
+      const name = e.name
       // incorrect interpolations will throw CssSyntaxError and they'll be handled by stylelint
       if (e.name === 'CssSyntaxError') {
         errorWasThrown[absolutePath] = true
         throw e
       }
+      if (name === 'SyntaxError') {
+        return input
+      }
       return ''
     }
   },