[BATIK-1090] Embedded SVG reports "Content is not allowed in prolog"

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.7, 1.8
• Component/s: Bridge, SVG Rasterizer
• Environment: Both Ubuntu and OS X Yosemite
• Assignee: Unassigned
• Reporter: Simon Sotak
• Created: 28/Oct/14 16:21
• Updated: 19/Jul/21 09:13

Description

I have the following svg:
https://www.dropbox.com/s/yx06wrzwx7y5eih/outer.svg?dl=0

When I try to rasterize it with Batik, I get the exception

org.apache.batik.bridge.BridgeException: Content is not allowed in prolog.
	at org.apache.batik.bridge.BridgeContext.getReferencedNode(BridgeContext.java:780)
	at org.apache.batik.bridge.BridgeContext.getReferencedElement(BridgeContext.java:796)
	at org.apache.batik.bridge.CSSUtilities.convertClipPath(CSSUtilities.java:719)
	at org.apache.batik.bridge.AbstractGraphicsNodeBridge.buildGraphicsNode(AbstractGraphicsNodeBridge.java:146)
	at org.apache.batik.bridge.SVGShapeElementBridge.buildGraphicsNode(SVGShapeElementBridge.java:92)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:224)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:219)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:219)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:219)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:219)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.build(GVTBuilder.java:141)
	at org.apache.batik.bridge.SVGImageElementBridge.createSVGImageNode(SVGImageElementBridge.java:660)
	at org.apache.batik.bridge.SVGImageElementBridge.createImageGraphicsNode(SVGImageElementBridge.java:288)
	at org.apache.batik.bridge.SVGImageElementBridge.buildImageGraphicsNode(SVGImageElementBridge.java:177)
	at org.apache.batik.bridge.SVGImageElementBridge.createGraphicsNode(SVGImageElementBridge.java:119)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:213)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:219)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(GVTBuilder.java:219)
	at org.apache.batik.bridge.GVTBuilder.buildComposite(GVTBuilder.java:171)
	at org.apache.batik.bridge.GVTBuilder.build(GVTBuilder.java:82)
	at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:208)
	at org.apache.batik.transcoder.image.ImageTranscoder.transcode(ImageTranscoder.java:92)
	at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:142)
	at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:156)
at <my_code>

Exception in thread "Animation Thread" org.apache.batik.transcoder.TranscoderException: null
Enclosed Exception:
Content is not allowed in prolog.
	at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:227)
	at org.apache.batik.transcoder.image.ImageTranscoder.transcode(ImageTranscoder.java:92)
	at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:142)
	at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:156)
	at <my_code>

I tried decoding the embedded base64 SVG, and batik rasterized it correctly.
Here it is: https://dl.dropboxusercontent.com/u/73774/svg/inner.svg

I tried inspecting the issue a bit, and the problem seems to be that the URLs in the embedded SVG that are in the form url(#SVGID_6_) are transformed to the form data:,#SVGID_6_ which seems to cause the problem.