xsl:include not working from a Firefox extension

Question

I am developing a Firefox extension that uses XSL transformations. I have been using XSLTProcessor without problems until I needed to do an xsl:include from the XSL stylesheet. When I import the XSL stylesheet that uses an xsl:include, Firefox gives an error:

Error: Component returned failure code: 0x80600001 [nsIXSLTProcessor.importStylesheet] = Source file: chrome://myextension/content/functions.js Line: 632

This only happens when running the code from the Firefox extension, if I run it in "normal" html page the code works perfectly. I also tried with xsl:import and got the same result. I also tried with absolute URIs like chrome:\\myextension\content\xsl\test2.xsl and get the same error.

Does anyone know what could I be doing wrong? Thanks in advance

Here goes the code to reproduce it (all files are in the same folder):

File functions.js:

function testXSL(){
        var processor = new XSLTProcessor();
        var xsl = document.implementation.createDocument("", "test", null);
        xsl.addEventListener("load", onXSLLoaded, false);

        xsl.load("test1.xsl");
        function onXSLLoaded() {
           processor.importStylesheet(xsl);
        }
}

File test1.xsl:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xlink="http://www.w3.org/1999/xlink"&gt;

<xsl:include href="test2.xsl" />

</xsl:stylesheet>

File test2.xsl:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xlink="http://www.w3.org/1999/xlink"&gt;

    <xsl:template match="/">
                <h1>Included!!</h1>
        </xsl:template>

</xsl:stylesheet>

Answer 1

It seems it's a Firefox regression bug. I found this one on Mozilla bugzilla. I'm afraid nobody can help you here unless the bug is patched, and that doesn't smell good...open 2 years ago, no update since 6 months.