填充模式svg不显示在epub中？

Question

我有这个SVG文件，包含一个由svg模式填充的矩形，FF正确显示，ADE上的IE9和电子酒吧根本不显示它，这是我的代码：

                   <pattern  y="600" width="50.92" height="35.508" patternUnits="userSpaceOnUse" id="draw" viewBox="0 -35.508 50.92 35.508" overflow="visible">
                <g>
              <polygon fill="none" points="0,0 50.919,0 50.919,-35.508 0,-35.508        "/>
                <line stroke="#000000" x1="13.221" y1="-35.105" x2="43.833" y2="-11.296"/>
              <line stroke="#000000" x1="13.221" y1="-28.983" x2="39.072" y2="-6.534"/>
              <line stroke="#000000" x1="6.418" y1="-23.201" x2="28.528" y2="-0.412"/>
              <line stroke="#000000" x1="39.072" y1="-35.105" x2="0.296" y2="-6.534"/>
              <line stroke="#000000" x1="50.636" y1="-23.201" x2="17.472" y2="-0.412"/>
              <line stroke="#000000" x1="43.833" y1="-28.983" x2="6.418" y2="-3.134"/>
    </g>
</pattern>