Ajax call and XML Validation error with special chars like & (amp)

[tomaszk]

Hello,

Our text data in database can contain special chars such as amp (&), which causes AJAX response crash, while the XML is invalid and could not be parsed (message visible in Firebug):

XML Parsing Error: not well-formed

For Ajax event we use :

<a4j:support event="onchange" immediate="true">, which rerenders other rich:datatable

Is there any configuration flag that enables us to escape such special characters in Ajax XML responses?

In web.xml we have:

<context-param>

        <param-name>org.ajax4jsf.xmlparser.ORDER</param-name>

        <param-value>NONE</param-value>

    </context-param>

    <context-param>

        <param-name>org.ajax4jsf.xmlparser.NONE</param-name>

        <param-value>.*\..*</param-value>

</context-param>

But i suppose it's not the error connected with xmlparser of ajax4jsf, since NONE parser does not perform xml validation.

[tomaszk]

We have resolved the issue by switching to NEKO parser, instead of NONE

<context-param>

        <param-name>org.ajax4jsf.xmlparser.ORDER</param-name>

        <param-value>NEKO</param-value>

    </context-param>

    <context-param>

        <param-name>org.ajax4jsf.xmlparser.NEKO</param-name>

        <param-value>.*\..*</param-value>

</context-param>

As it turned out NEKO parser purifies HTML inputs and properly encodes invalid xml characters, while NONE parser does not.

The hint came from Nick Belaevski from Richfaces team, after I put the bug on JIRA:

https://issues.jboss.org/browse/RF-10554