Quote conversion in JSON pane breaks valid JSON content

[analog-cbarber]

The Javascript code for the JSON pane blindly replaces all single quotes with double quotes, presumably to convert Python single quoted strings to standard JSON double quoted strings.

panel/panel/models/json.ts

Line 17 in 3fdfa32

const text = this.model.text.replace(/(\r\n|\n|\r)/gm, "").replace("'", '"')

However, it is perfectly legal to have single quotes inside of JSON string values, so this will turn correctly encoded JSON string into invalid JSON.

The simplest fix would simply be to remove the quote conversion hack. Otherwise, you are going to need to be smart enough to only convert quotes that are not inside of strings.

[analog-cbarber]

The only workaround I can think of in the meantime is to pass in an already encoded string with single quotes replaced by \u0027:

pn.pane.JSON(object="""["can\\u0027t show this"]""")