Parse successful
<?xml version="1.0" encoding="ISO-8859-1"?>
<Dataset xmlns="http://xml.opendap.org/ns/DAP/4.0#" xml:base="file:dap4/test_array_3.xml" dapVersion="4.0" dmrVersion="1.0" name="test_array_3">
    <Dimension name="row" size="5"/>
    <String name="x">
        <Dim name="/row"/>
        <Dim size="3"/>
    </String>
</Dataset>

Response file: test_array_3_data.bin
