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copied!<p>I am still quite certain that there is a bug in Chrome's <code>XMLSerializer</code>, most likely introduced while addressing the <a href="https://stackoverflow.com/questions/8979267/xmlserializer-strips-xlink-from-xlinkhtml-svg-image-tag">SVG handling of XLink attributes that Barbarrosa pointed to</a>. But given the lack of response to the <a href="http://code.google.com/p/chromium/issues/detail?id=155135" rel="nofollow noreferrer">bug report</a> I made for it, we've had to move forward and work around the problem. </p> <p>We work around the problem by calling this function on the <code>documentElement</code>:</p> <pre><code>function EnsureXLinkNamespaceOnElement(element) { if (element.nodeType == 1) { var usesXLinkNamespaceUri = false; var hasXLinkNamespacePrefixDefined = false; for (var i = 0; i < element.attributes.length; i++) { var attribute = element.attributes[i]; if (attribute.specified) { if (attribute.name.indexOf("xmlns:xlink") == 0) { hasXLinkNamespacePrefixDefined = true; } else if (attribute.namespaceURI == "http://www.w3.org/1999/xlink") { usesXLinkNamespaceUri = true; } } } if (usesXLinkNamespaceUri && !hasXLinkNamespacePrefixDefined) { element.setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink'); } for (i = 0; i < element.childNodes.length; i++) { EnsureXLinkNamespaceOnElement(element.childNodes[i]); } } } </code></pre> <p>The function simply ensures that the <code>xmlns:xlink</code> attribute is declared on any element that has attributed in the XLink namespace. Since the function traverses the tree and thus can be quite time-consuming, I only invoke it for Chrome versions 22 and higher.</p> <p>Note that in most cases you could also get away with simply adding the <code>xmlns:xlink</code> namespace on the document element, since it will be inherited from there. But in our case there was some other code that strips the document element using a regular expression, so we decided to play it safe and simply add the attribute everywhere it may be needed.</p> <h1>Update (20130324):</h1> <p>The <a href="https://code.google.com/p/chromium/issues/detail?id=155135" rel="nofollow noreferrer">bug</a> was fixed and verified in Chrome Canary 26. I have been able to verify it myself on version <code>25.0.1364.172 m</code> too.</p>

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