I now have a text containing special characters like this &lt; &gt. When I open this text in jsonEditor and edit it, it becomes <> after editing. How can I resolve this?

[xujinshuo-li]

befor edit：

after edit：

[josdejong]

The editor escapes script tags < > into < and > to prevent against XSS attacks (i.e prevent loading a JSON file containing <script>...</script> to execute this script.

Code: https://github.com/josdejong/jsoneditor/blob/develop/src/js/Node.js#L4014-L4056

We could change this but we need to be careful to stay safe against XSS attacks, it will require effort and care (replacing usages of .innerHTML with .innerText, which works quite differently).

The successor of this library, svelte-jsoneditor, has solved this issue.