Symptoms
Assume that you have an SVG document that contains line elements with markers. Then, you open the SVG document in Internet Explorer 11. When the SVG content is updated through script code (for example, through the onmouseover and onmouseout events), the line markers may disappear.
Resolution
Update information
To resolve this problem, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update. Additionally, see the technical information about the most recent cumulative security update for Internet Explorer.
Note This update was first included in the November cumulative security update for Internet Explorer (MS14-065).
More Information
For example, this issue can occur in an SVG document that contains the following code:
<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>
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
See the terminology that Microsoft uses to describe software updates.
