The props of custom components are changed to lowercase

[withparadox2]

Child component can not receive expected props passed from parent because they are converted to lower case.

I read the code and find the case of tag is under consideration while attribute's is not, it seems necessary to add another option lowerCaseAttributeNames: false for parser.

function parseDOM(source) {
  return htmlparser.parseDOM(source, {recognizeSelfClosing: true, lowerCaseTags: false});
}