ตัวทำเครื่องหมายบรรทัด SVG อาจหายไปเมื่อมีการปรับปรุงเนื้อหา SVG ผ่านรหัสสคริปต์ใน Internet Explorer 11

<svg xmlns="http://www.w3.org/2000/svg" viewBox = "0 0 4000 2000" version = "1.1"><defs>
          <marker id = "StartMarker" viewBox = "0 0 12 12" refX = "12" refY = "6" markerWidth = "3" markerHeight = "3"  stroke-width = "2"  orient = "auto">
            <circle cx = "6" cy = "6" r = "5"></circle>
          </marker>

          <marker id = "EndMarker" viewBox = "0 0 10 10" refX = "5" refY = "5" markerUnits = "strokeWidth" markerWidth = "3" markerHeight = "3"  stroke-width = "2" >
            <rect x = "0" y = "0" width = "10" height = "10"></rect>
          </marker>

          <marker id="Circle" viewBox="0 0 10 10" refX="4" refY="10" markerUnits="strokeWidth" markerWidth="6" markerHeight="6" orient="auto">
            <circle cx="5" cy="5" r="5" fill="black" ></circle>
          </marker>

          <marker id="Rect" viewBox="0 0 20 20" refX="0" refY="10" markerUnits="strokeWidth" markerWidth="10" markerHeight="10" orient="auto">
            <rect width="10" height="10" fill="grey" ></rect>
          </marker>
        </defs>

       <path id="path1" d = "M 200 250 L 700 100 " fill = "none" stroke = "black" stroke-width = "50" marker-start = "url(#StartMarker)" marker-mid = "url(#MidMarker)" marker-end = "url(#EndMarker)" onmouseover="this.style.stroke = 'blue';" onmouseout="path1.style.stroke = 'red';"></path>
    </svg>