SVGHMI: Fix browser side exception when some widget are not used, and are then discarded and not present in final SVG. In that case JS code was still making reference to discarded widget elements and was raising exception at init.
<?xml version='1.0' encoding='utf-8'?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.plcopen.org/xml/tc6_0201" xmlns:xhtml="http://www.w3.org/1999/xhtml" xsi:schemaLocation="http://www.plcopen.org/xml/tc6_0201">
<fileHeader companyName="beremiz" productName="beremiz" productVersion="1" creationDateTime="2008-06-24T18:44:00"/>
<contentHeader name="canopen_slave" modificationDateTime="2018-09-26T13:32:23" language="en-US">
<coordinateInfo>
<fbd>
<scaling x="0" y="0"/>
</fbd>
<ld>
<scaling x="0" y="0"/>
</ld>
<sfc>
<scaling x="0" y="0"/>
</sfc>
</coordinateInfo>
</contentHeader>
<types>
<dataTypes/>
<pous>
<pou name="test_main" pouType="program">
<interface>
<localVars>
<variable name="outvar" address="%QW0.0.8192.0">
<type>
<INT/>
</type>
</variable>
<variable name="invar" address="%IW0.0.8193.0">
<type>
<INT/>
</type>
</variable>
</localVars>
</interface>
<body>
<FBD>
<outVariable localId="1" height="29" width="80" executionOrderId="0" negated="false">
<position x="362" y="139"/>
<connectionPointIn>
<relPosition x="0" y="14"/>
<connection refLocalId="4" formalParameter="OUT">
<position x="362" y="153"/>
<position x="299" y="153"/>
</connection>
</connectionPointIn>
<expression>outvar</expression>
</outVariable>
<inVariable localId="2" height="29" width="20">
<position x="100" y="115"/>
<connectionPointOut>
<relPosition x="20" y="14"/>
</connectionPointOut>
<expression>1</expression>
</inVariable>
<block localId="4" width="75" height="60" typeName="ADD">
<position x="224" y="123"/>
<inputVariables>
<variable formalParameter="IN1">
<connectionPointIn>
<relPosition x="0" y="30"/>
<connection refLocalId="2">
<position x="224" y="153"/>
<position x="183" y="153"/>
<position x="183" y="129"/>
<position x="120" y="129"/>
</connection>
</connectionPointIn>
</variable>
<variable formalParameter="IN2">
<connectionPointIn>
<relPosition x="0" y="50"/>
<connection refLocalId="5">
<position x="224" y="173"/>
<position x="187" y="173"/>
<position x="187" y="187"/>
<position x="150" y="187"/>
</connection>
</connectionPointIn>
</variable>
</inputVariables>
<inOutVariables/>
<outputVariables>
<variable formalParameter="OUT">
<connectionPointOut>
<relPosition x="75" y="30"/>
</connectionPointOut>
</variable>
</outputVariables>
</block>
<inVariable localId="5" height="29" width="60">
<position x="90" y="173"/>
<connectionPointOut>
<relPosition x="60" y="14"/>
</connectionPointOut>
<expression>invar</expression>
</inVariable>
</FBD>
</body>
</pou>
</pous>
</types>
<instances>
<configurations>
<configuration name="conf">
<resource name="res">
<task name="tache" interval="T#10ms" priority="0">
<pouInstance name="toto" typeName="test_main"/>
</task>
</resource>
</configuration>
</configurations>
</instances>
</project>