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I'm building an SVG document which contains various image tags. The xlink:href (source URL) attributes for the images contain query strings with ampersands. If I escape them as %26 or the ascii encoding ? they're not valid query strings and the server won't deliver the image. I can't escape them with CDATA because they're attributes (not nodes). I've tried creating an xlink:href node within the image tag but that get's ignored by the SVG parser. I want to use pure SVG (not SVG within HTML) so that I can convert to a JPG later, thus scripting is out...

Any hints on how I can make the below work?

<image x="0" y="0" width="306" height="306" xlink:href="http://host.com/image.jpg?token=asdf&expiration=9384029&etc=etc"/>

Thanks!

Peter K.
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    Oops! The solution is to replace the ampersands with the correct ascii code #38 and Not #63 (which is a question mark '?') as I had initially tried after mis-reading this question: http://stackoverflow.com/questions/649270/using-in-svg-href Ascii codes: http://www.ascii.cl/htmlcodes.htm Thanks to Stunti http://stackoverflow.com/users/54949/stunti – Peter K. Aug 02 '11 at 16:19

2 Answers2

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In all XML applications, including SVG, the following entities are valid without a custom DTD:

  • &amp; - &
  • &gt; - >
  • &lt; - <

In your case, this should work without resorting to ugly ASCII hacks:

<image xlink:href="http://foo.com/bar.jpg?token=asdf&amp;exp=9384&amp;etc=etc"/>
Phrogz
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    Unfortunately, *&* didn't work because the browser didn't translate them back into actual ampersands at render-time and thus, the query strings didn't work... Thanks, all the same. – Peter K. Aug 03 '11 at 08:34
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The solution is to replace the ampersands with the correct ascii code #38 and Not #63 (which is a question mark '?') as I had initially tried after mis-reading this question: using "?" in SVG href

Thanks to Stunti https://stackoverflow.com/users/54949/stunti

http://www.ascii.cl/htmlcodes.htm

Community
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Peter K.
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