Circular reference in value argument not supported
An attempt has been made to invoke JSON.stringify with a value that is not valid. The value argument, an array or object, contains a circular reference.
To correct this error
- Remove the circular reference from the argument.
Example
The code in this example causes a runtime error because john has a reference to mary and mary has a reference to john. to remove the circular reference, either remove or unset the property brother from the mary object or the sister property from the john object.
var john = new Object();
var mary = new Object();
john.sister = mary;
mary.brother = john;
// This line causes a runtime error.
var error = JSON.stringify(john);