“未捕获的SyntaxError:在试图解析HTML嵌入的字符串JSON时，在第1位的JSON中意外的令牌x”。

I've being trying to parse a hardcoded JSON string to an usable format, but I can't find a way to get it work, getting 'Unexpected token' or just weird outputs. Library used: I've being trying to parse a hardcoded JSON str