# Limitations of XML Editor

This section describes known product aspect limitations and workarounds.

The behavior of the XML parser when encountering an unresolvable URI (for example, in a DOCTYPE declaration) is to report a fatal IO error and stop any further processing. An unresolved URI is seen neither as a syntactic nor a semantic error and as such, the parser does not attempt to handle it. Essentially, the document remains unchecked. This is a known problem.

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