Adds Soap header if it is missing

add_missing_soap_header.xsl

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
	<xsl:output method="xml" indent="yes"/>
	<xsl:template match="@*|node()">
		<xsl:copy>
			<xsl:apply-templates select="@*|node()"/>
		</xsl:copy>
	</xsl:template>
	<xsl:template match="/*[not(//soapenv:Header)]">
		<xsl:copy>
			<soapenv:Header />
			<xsl:apply-templates select="@*|node()"/>
		</xsl:copy>
	</xsl:template>
</xsl:stylesheet>

<!--
Add empty soap header if it is missing.
Kaan Yamanyar
-->