SearchBuilder JSON Error: Cannot create property 'searchBuilder' on string

[Shtreel]

I get an error when converting the data sent to the server to JSON. Based on the documentation here https://datatables.net/reference/option/ajax.data, it should be possible to convert to JSON by doing
new DataTable('#myTable', { ajax: { url: 'data.json', contentType: 'application/json', type: 'POST', data: function (d) { return JSON.stringify(d); } } });
However, this doesn't work when SearchBuilder is enabled which causes a "Cannot create property 'searchBuilder' on string" error. This issue was mentioned in https://datatables.net/forums/discussion/76987/searchbuilder-criteria#latest, but there doesn't seem to be a fix other than modifying the source code to remove the line that gets SearchBuilder details

[AllanJard]

Thank you - I missed that thread. I'll try and look into it next week.