questionmark "??" problem when ajax operation

[xdommy]

This problem is not closed. In version 1.5.2 persist

If I try this code:

var JSonData = '{"value":"try ??"}';

$.ajax({

type: "POST", url: "WCF_Services.aspx/DoWork", data: JSonData, contentType: "application/json", dataType: "json", success: function (input) {

alert(input.d);

}

});

it produce this JSON OBJECT in request:

{"value":"try jQuery1520880517924837633_1304179966549"}

[anonymous]

I want to add that the same code works fine in jquery 1.4.4. In jquery 1.5, 1.5.1 and 1.5.2 don't work, produce this bug

Replying to xdommy:

This problem is not closed. In version 1.5.2 persist

If I try this code:

var JSonData = '{"value":"try ??"}';

$.ajax({

type: "POST", url: "WCF_Services.aspx/DoWork", data: JSonData, contentType: "application/json", dataType: "json", success: function (input) {

alert(input.d);

}

});

it produce this JSON OBJECT in request:

{"value":"try jQuery1520880517924837633_1304179966549"}

[Rick Waldron]

Duplicate of #8417.