dient() and 1 conic-gradient() are computed for 'background-image'." name="assert">

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  Blink (Chromium) Bug report 947377: [css-values-3] Values inside <image>s are not computed correctly / reflected correctly from getComputedStyle
  https://bugs.chromium.org/p/chromium/issues/detail?id=947377

  WebKit (Safari) Bug report 196389: [css-values-3] Computed value of calc() expression in linear-gradient function incorrect
  https://bugs.webkit.org/show_bug.cgi?id=196389

  -->

  <style>
  div#target
  