Invalid XML is not being seen as invalid

I've been getting inconsistent validation, when trying to make invalidXml prop work. Certain constructs are taken to be valid while others aren't.

For example, Invalid XML!v> is seen as valid while <Invalid XML is not valid.

I looked into how the library is doing the validation here:

https://github.com/alissonmbr/react-xml-viewer/blob/b47d385b2b63bb468903b6591bcf8966e25df669/src/hooks/useXMLViewer.ts#L18

And I tried using the same functions, see below.

Code example

> parser.parse('Invalid XML!v>')
[]

> parser.parse('<Invalid XML')
Uncaught TypeError: Cannot read properties of undefined (reading 'tagName')
    at OrderedObjParser.parseXml (/Users/renan/tmp/latest-react/node_modules/fast-xml-parser/src/xmlparser/OrderedObjParser.js:283:29)
    at XMLParser.parse (/Users/renan/tmp/latest-react/node_modules/fast-xml-parser/src/xmlparser/XMLParser.js:35:48)

You can see it's parsing Invalid XML!v> but it won't take <Invalid XML. If you use require('fast-xml-parser').XMLValidator.validate function, you see the former is indeed invalid.

> require('fast-xml-parser').XMLValidator.validate('Invalid XML!v>')
{
  err: {
    code: 'InvalidChar',
    msg: "char 'I' is not expected.",
    line: 1,
    col: 1
  }
}

alissonmbr / react-xml-viewer

Invalid XML is not being seen as invalid #77

Code example